@article{Srichavengsup2008a,

title = {Design and performance evaluation of contention resolution schemes with QoS support for multimedia traffic in high bit-rate wireless communications},

author = {W Srichavengsup and A Charoenpanichkit and L Wuttisittikulkij},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-68449089001&doi=10.1093%2fietcom%2fe91-b.5.1295&partnerID=40&md5=30cfb56e289d243c157b4082b8b00bab},

doi = {10.1093/ietcom/e91-b.5.1295},

issn = {09168516},

year  = {2008},

date = {2008-01-01},

journal = {IEICE Transactions on Communications},

volume = {E91-B},

number = {5},

pages = {1295-1308},

publisher = {Institute of Electronics, Information and Communication, Engineers, IEICE},

abstract = {This paper considers the problem of contention resolution algorithm for multi-class with quality of service (QoS) constrained for wireless communication. Five different channel reservation schemes are proposed, namely, UNI+MLA, UNI+DS, UNI+DS+MLA, Partial UNI and Partial UNI+MLA schemes for multimedia traffic, all are extensions of our recently proposed UNI scheme for single-class traffic. The goal is to achieve the highest system performance and enable each traffic type to meet its QoS requirements. We evaluate the performance of each scheme by mathematical analysis. The numerical results show that our proposed schemes are effective in enabling each traffic type to achieve the best successful rate possible in this kind of environment. Finally when comparing between our proposed schemes and conventional technique in terms of both throughput performance and QoS requirements it is found that the UNI+MLA, UNI+DS+MLA and Partial UNI+MLA schemes are relatively efficient and suitable for practical applications. Copyright © 2008 The Institute of Electronics, Information and Communication Engineers.},

note = {cited By 0},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Vanichchanunt2008,

title = {Iterative multiple symbol differential detection for turbo coded differential unitary space-time modulation},

author = {P Vanichchanunt and P Sangwongngam and S Nakpeerayuth and L Wuttisittikulkij},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-42149117430&doi=10.1109%2fJCN.2008.6388327&partnerID=40&md5=ea4fdc9ff6505a1fe22eb02155b033de},

doi = {10.1109/JCN.2008.6388327},

issn = {12292370},

year  = {2008},

date = {2008-01-01},

journal = {Journal of Communications and Networks},

volume = {10},

number = {1},

pages = {44-54},

publisher = {Korean Institute of Communication Sciences},

abstract = {In this paper, an iterative multiple symbol differential detection for turbo coded differential unitary space-time modulation using a posteriori probability (APP) demodulator is investigated. Two approaches of different complexity based on linear prediction are presented to utilize the temporal correlation of fading for the APP demodulator. The first approach intends to take account of all possible previous symbols for linear prediction, thus requiring an increase of the number of trellis states of the APP demodulator. In contrast, the second approach applies Viterbi algorithm to assist the APP demodulator in estimating the previous symbols, hence allowing much reduced decoding complexity. These two approaches are found to provide a trade-off between performance and complexity. It is shown through simulation that both approaches can offer significant BER performance improvement over the conventional differential detection under both correlated slow and fast Rayleigh flat-fading channels. In addition, when comparing the first approach to a modified bit-interleaved turbo coded differential space-time modulation counterpart of comparable decoding complexity, the proposed decoding structure can offer performance gain over 3 dB at BER of HT-5. © 2008 KICS.},

note = {cited By 3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Boworntummarat2005,

title = {Using mesh and multi-ring methods in the design of survivable wavelength-routed all-optical networks},

author = {C Boworntummarat and P Thanakomsakorn and W Tirasirikul and L Wuttisittikulkij and S Segkhoonthod},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-17044368349&doi=10.1002%2fett.999&partnerID=40&md5=aacb131fff0b4d02dff32075c29795eb},

doi = {10.1002/ett.999},

issn = {1124318X},

year  = {2005},

date = {2005-01-01},

journal = {European Transactions on Telecommunications},

volume = {16},

number = {2},

pages = {157-172},

abstract = {This paper presents a comprehensive investigation of a wide range of protection strategies against all single link failures in all-optical wavelength division multiplexing (WDM) networks based on mesh and multi-ring architectures. In the mesh architecture, three protection strategies namely, minimal cost, single link basis and disjoint path protection strategies are investigated. In the multi-ring architecture, the distribution and non-distribution traffic multi-ring design strategies are extensively examined. Although, the concepts of mesh and multi-ring designs have previously been perceived to be fundamentally different, in this paper, we shall explain and show that these two architectures can be systematically related and viewed as a unified concept. This new way of looking at the fully survivable network design helps us to understand clearly the mechanisms and performance of each protection strategy. In addition, this approach allows us to see the trend of fiber-cost requirements that increase step-by-step from the most complicated mesh protection to the simplest multi-ring protection architectures. To minimize the system cost of 100% protection WDM networks, mathematical models based on the integer linear programming (ILP) are derived as the tool for achieving optimal path placement, wavelength assignment and ring selection simultaneously. Apart from the mathematical model, the main contributions of this paper are the analysis and comparison in aspects of the spare capacity requirement and ease of operation and practical feasibility amongst these protection strategies. However, the emphasis will be on the multi-ring protection schemes. In addition, the influence of the number of multiplexed wavelengths per fiber to design outcomes and the benefit of having wavelength conversion capability in WDM network environment are also studied. Copyright © 2004 AEI.},

note = {cited By 5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Srichavengsup2005a,

title = {A design and performance evaluation of a class of channel reservation techniques for medium access control protocols in high bit-rate wireless communications},

author = {W Srichavengsup and N Sivamok and A Suriya and L Wuttisittikulkij},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-26044450993&doi=10.1093%2fietfec%2fe88-a.7.1824&partnerID=40&md5=328952f4666692a526fc5894194a8664},

doi = {10.1093/ietfec/e88-a.7.1824},

issn = {09168508},

year  = {2005},

date = {2005-01-01},

journal = {IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences},

volume = {E88-A},

number = {7},

pages = {1824-1835},

publisher = {Institute of Electronics, Information and Communication, Engineers, IEICE},

abstract = {This paper introduces 12 channel reservation techniques for medium access control (MAC) protocols suitable for high bit-rate wireless communication systems. The first 7 algorithms, namely CFP, CAP, COP, COP+SPL, CFP+SPL, UNI and UNI+LA, are applicable to systems with single-access chance per frame, whereas the other 5 algorithms, namely MT-CFP, MT-CFP+SPL, MT-UNI, MT-UNI+LUA and MT-UNI+LUT are suitable for systems with multi-access attempts per frame. The performance of these techniques are analytically evaluated and compared with the existing known techniques. The analytical model derived here are also validated through Monte Carlo computer simulations. Numerical results show that all proposed techniques are in general more superior to conventional reservation techniques. Finally when comparing between all proposed schemes in terms of both throughput performance and practical feasibility it is found that the MT-UNI+LA scheme are relatively efficient and suitable for practical applications. Copyright © 2005 The Institute of Electronics, Information and Communication Engineers.},

note = {cited By 8},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Boworntummarat2004a,

title = {Analysis and design of multicast routing and wavelength assignment in mesh and multi-ring WDM transport networks with multiple fiber systems},

author = {C Boworntummarat and L Wuttisittikulkij and S Segkhoonthod},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-10444249588&partnerID=40&md5=6790ad11c7e749e759236c6f14846bb1},

issn = {09168516},

year  = {2004},

date = {2004-01-01},

journal = {IEICE Transactions on Communications},

volume = {E87-B},

number = {11},

pages = {3216-3229},

publisher = {Institute of Electronics, Information and Communication, Engineers, IEICE},

abstract = {In this paper, we consider the problem of multicast routing and wavelength assignment (MC-RWA) in multi-fiber all-optical WDM networks. Two main network design system comprehensively investigated here are mesh and multi-ring designs. Given the multicast traffic demands, we present new ILP formulations to solve the MC-RWA problem with an objective to determine the minimal number of fibers needed to support the multicast requests. Unlike previous studies, our ILP formulations are not only capable of finding the optimal multicast routing and wavelength assignment pattern to the light-trees, but also finding the optimal light-tree structures simultaneously. Since broadcast and unicast communications are special cases of multicast communications, our ILP models are actually the generalized RWA mathematical models of optical WDM networks. In addition to proposing the ILP models, this paper takes two main issues affecting the network capacity requirement into account, that is, the splitting degree level of optical splitters and techniques of wavelength assignment to the light-trees, Three multicast wavelength assignment techniques studied in this paper are Light-Tree (LT), Virtual Light-Tree (VLT) and Partial Virtual Light-Tree (PVLT) techniques. Due to the NP-completeness of the MC-RWA problem, the ILP formulations can reasonably cope with small and moderate networks. To work with large networks, this paper presents alternative MC-RWA ILP-based heuristic algorithms for the PVLT and LT networks and develops lower bound techniques to characterize the performance of our algorithms. Using existing large backbone networks, numerical results are reported to analyze such aspects as multiple fiber systems, the benefits of using optical splitters and wavelength converters, and the capacity difference between the mesh and multi-ring designs. Finally, this paper provides an analysis of the influence of network connectivity on the network implementation under the constraints of mesh and multi-ring design schemes.},

note = {cited By 1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Boworntummarat2002,

title = {A comparison on capacity requirement of optical WDM mesh network protection strategies},

author = {C Boworntummarat and L Wuttisittikulkij},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036824032&partnerID=40&md5=313c782ca53fed325fc518e51ed97ac2},

issn = {09168516},

year  = {2002},

date = {2002-01-01},

journal = {IEICE Transactions on Communications},

volume = {E85-B},

number = {10},

pages = {2236-2246},

publisher = {Institute of Electronics, Information and Communication, Engineers, IEICE},

abstract = {This paper presents a comprehensive investigation of three optical wavelength-division multiplexed (WDM) mesh network protection approaches, namely minimal cost, single link basis and disjoint path approaches. The operation of each approach is described and their performances are extensively evaluated and compared. Key aspects that are taken into the consideration and comparison of the designs include a spare capacity requirement, ease of operation and practical feasibility. A mathematical model based on integer linear programming is introduced to obtain a lower bound on the spare capacity requirement for full protection against all single link failures. Two heuristic algorithms have also been developed to perform wavelength resource allocation under both normal and failure conditions for both systems with an without wavelength conversion capability. It is shown that the minimal cost approach can accomplish the lowest extra cost requirement for protection, but this approach is considered not appropriate for practical applications due to complicated restoration and management. The single link basis scheme is on the other hand more practical and very cost efficient. For the disjoint path technique, the cost for spare capacity is generally slightly greater than that of the single link basis scheme. Its main advantages lie in the simple re-configuration and inherent protection against node failure for in-transit traffic. Finally, a new framework for obtaining a good spare capacity cost estimate of a mesh restorable network is presented.},

note = {cited By 4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Boworntummarat2002a,

title = {Design and analysis of 100% resilient all-optical wdm networks based on mesh and multi-ring approaches using joint optimization technique},

author = {C Boworntummarat and P Thanakomsakorn and W Tirasirikul and L Wuttisittikulkij and S Segkhoonthod},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905461817&doi=10.1109%2fHPSR.2002.1024200&partnerID=40&md5=18c53bd91cb91608d6d595dc6d948b8f},

doi = {10.1109/HPSR.2002.1024200},

issn = {23255595},

year  = {2002},

date = {2002-01-01},

journal = {IEEE International Conference on High Performance Switching and Routing, HPSR},

pages = {9-13},

abstract = {This paper presents a comprehensive investigation of a wide range of protection strategies against all single link failures in all-optical WDM networks based on mesh and multi-ring architectures. In the mesh architecture, three protection strategies, namely, minimal cost, single link basis and disjoint path protection strategies are investigated. In the multi-ring architecture, the distribution and non-distribution traffic multi-ring design strategies are extensively examined. Although, the concepts of mesh and multi-ring designs have previously been perceived to be fundamentally different, in this paper we explain and show that these two architectures can be systematically related and viewed as a unified concept. This new way of looking at the fully survivable network design helps understand clearly the mechanisms and performance of each protection strategy. To minimize the system cost of 100% protection WDM networks, mathematical models based on the integer linear programming (ILP) are derived as the tool for achieving optimal path placement, wavelength assignment and ring selection simultaneously. Apart from the mathematical model, the main contributions of this paper are the analysis and comparison in aspects of the spare capacity requirement and ease of operation and practical feasibility amongst these protection strategies. However, the emphasis is on the multi-ring protection schemes. In addition, the influence of the number of multiplexed wavelengths per fiber to design outcomes and the benefit of having wavelength conversion capability in WDM network environment are also studied. © 2002 IEICE.},

note = {cited By 1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Thanasorravit2002,

title = {Delay performance analysis of uniform (UNI) and uniform with limited access techniques (UNI+LA) in wireless communication systems},

author = {A Thanasorravit and A Charoenpanichkit and A Suriya and L Wuttisittikulkij and S Aramvith},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036346082&doi=10.1109%2fVTC.2002.1002631&partnerID=40&md5=5ca1fe594ed038e9322fb0cdbd891f94},

doi = {10.1109/VTC.2002.1002631},

issn = {07400551},

year  = {2002},

date = {2002-01-01},

journal = {IEEE Vehicular Technology Conference},

volume = {2},

pages = {962-966},

abstract = {This paper presents the delay analysis of two new channel reservation schemes namely UNI and UNI+LA for the relatively long delay systems. Mathematical models have been formulated for the performance evaluation. We found that the numerical results from the formation derived yield the same output as the simulation results. In addition, the numerical results show that the delay performance of the system depends on the traffic load and the ratio of the number of request slots per frame.},

note = {cited By 0},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Suriya2002,

title = {New single-access channel reservation schemes for QoS constrained multimedia traffic},

author = {A Suriya and A Charoenpanichkit and A Thanasorravit and S Aramvith and L Wuttisittikulkij},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036061046&doi=10.1109%2fVTC.2002.1002694&partnerID=40&md5=432074bdb1db91869642af88072745c5},

doi = {10.1109/VTC.2002.1002694},

issn = {07400551},

year  = {2002},

date = {2002-01-01},

journal = {IEEE Vehicular Technology Conference},

volume = {1},

pages = {209-213},

abstract = {We consider a single-access system where high bit-rate communication systems constrain the propagation delay between users and the base station. In this scenario, we found that existing channel reservation schemes cannot guarantee the satisfaction to all users regarding different Quality of Service (QoS). Thus in this paper, we propose two new channel reservation schemes which taken into consideration priority service to more delay-sensitive multimedia traffics, namely, UNI+MLA, and Partial UNI+MLA schemes for multimedia traffics, an extension of our recently proposed UNI+LA scheme for single-class traffic. The goal is to achieve the highest system performance and enable each traffic types to meet their QoS requirements. We evaluate the performance of each scheme by mathematical analysis. The numerical results show that our proposed schemes are effective in enabling different traffic users to achieve the best successful rate possible in this kind of environment.},

note = {cited By 2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Kantawong2001,

title = {Investigation of contention resolution algorithms for wireless communication systems},

author = {S Kantawong and N Sivamok and L Wuttisittikulkij},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035187984&doi=10.1109%2fVTC.2001.956590&partnerID=40&md5=ec8cdaef49eed77b8d57d7789eabdbb0},

doi = {10.1109/VTC.2001.956590},

issn = {07400551},

year  = {2001},

date = {2001-01-01},

journal = {IEEE Vehicular Technology Conference},

volume = {1},

number = {54ND},

pages = {222-226},

abstract = {This paper investigates and compares 9 different contention resolution algorithms for wireless communications using a mathematical analysis. The first 4 algorithms, namely EB, DP, DP+LA and DP+OLA, are suitable for systems with multi-access attempts per frame, whereas the other 5 algorithms, namely CFP, CAP, COP, SDP and SEB are applicable to systems with single-access chance per frame. Numerical results show that systems with multi-access are in general more superiors to systems with single-access.},

note = {cited By 1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Iamvasant2000,

title = {A comparative study of mesh and multi-ring designs for survivable WDM networks},

author = {T Iamvasant and C Baworntummarat and L Wuttisittikulkij},

editor = {Fdida Korner Stavrakakis S U I Pujolle G. Perros H.},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-63249128863&doi=10.1007%2f3-540-45551-5_17&partnerID=40&md5=a206e907c39a051833de4c49102f8b75},

doi = {10.1007/3-540-45551-5_17},

issn = {03029743},

year  = {2000},

date = {2000-01-01},

journal = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)},

volume = {1815},

pages = {189-200},

publisher = {Springer Verlag},

abstract = {In this paper, two distinct optical network design approaches, namely mesh and multi-ring, for survivable WDM networks are investigated. The main objective is to compare these two design approaches in terms of network costs so that their merits in practical environments can be identified. In the mesh network design, a new mathematical model based on integer liner programming (ILP) and a heuristic algorithm are presented for achieving a minimal cost network design. In the multi-ring network design, a heuristic algorithm that can be applied to large network problems is proposed. The influence of wavelength conversion and the number of wavelengths multiplexed in a fiber on system designs are also discussed. Based on the simulation results, the redundancy quantities required for full protection in multi-ring approach are significantly larger in comparison to the minimal cost mesh counterpart. © Springer-Verlag Berlin Heidelberg 2000.},

note = {cited By 3; Conference of IFIP-TC6/European Commission International Conference on Networking, NETWORKING 2000 ; Conference Date: 14 May 2000 Through 19 May 2000; Conference Code:131559},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Wuttisittikulkij2000,

title = {A comparative study of mesh and multi-ring designs for survivable WDM networks},

author = {L Wuttisittikulkij and C Baworntummarat and T Iamvasant},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034291851&partnerID=40&md5=5dc68d5e25f4d49a63d1f515a6443c87},

issn = {09168516},

year  = {2000},

date = {2000-01-01},

journal = {IEICE Transactions on Communications},

volume = {E83-B},

number = {10},

pages = {2270-2277},

publisher = {Institute of Electronics, Information and Communication, Engineers, IEICE},

abstract = {In this paper two distinct optical network design approaches namely mesh and multi-ring for survivable WDM networks are investigated. The main objective is to compare these two design approaches in terms of network costs so that their merits in practical environments can be identified. In the mesh network design a new mathematical model based on integer liner programming (ILP) and a heuristic algorithm are presented for achieving a minimal cost network design. In the multi-ring network design a heuristic algorithm that can be applied to large network problems is proposed. The influence of wavelength conversion and the number of wavelengths multiplexed in a fiber on system designs are also discussed. Based on the simulation results the redundancy quantities required for full protection in multi-ring approach are significantly larger in comparison to the minimal cost mesh counterpart.},

note = {cited By 7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}