By Xiao Jun Hei, Lawrence Cheung
This e-book constitutes the completely refereed post-conference court cases of the Fourth overseas convention on entry Networks, AccessNets 2009, held in Hong Kong, China, in November 2009. The eleven revised complete papers awarded including eight invited papers have been conscientiously reviewed and chosen. The papers current unique and primary study advances within the zone of entry networks, resembling hybrid dynamic bandwidth and wavelength allocation set of rules, diverse functions in EPON, unsolicited supply companies (UGS), cellular WiMAX community, FiWi networks, built-in PON-WiMAX networks, cognitive radio networks, effective and dynamic spectrum sharing, cross-layer routing technique for SCTP, and vectored DSL.
Read Online or Download Access Networks: 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers (Lecture Notes of the Institute ... and Telecommunications Engineering, 37) PDF
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Additional info for Access Networks: 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers (Lecture Notes of the Institute ... and Telecommunications Engineering, 37)
This paper introduces a new technique called Swapping Min-Max (SWIM) for UGS scheduling that not only meets the delay constraint with optimal throughput, but also minimizes the delay jitter and burst overhead. 16e, Unsolicited Grant Service, UGS, QoS, Delay Jitter. 16e Mobile WiMAX is its strong quality of service (QoS). 16e Mobile WiMAX provides the multiple QoS classes for voice, video, and data applications . To meet QoS requirements especially for voice and video transmissions with delay and delay jitter constraints, the key issue is how to allocate resources among contending users.
As far as the latter is concerned, there is also some related work. 11 DCF  a sender initiated MAC protocol. References  are hybrid protocols. A pure receiver initiated protocol, as exampled by , needs to have an effective polling scheme so that the receiver can predict the sending patterns of various potential senders. This is obviously difficult to achieve. References  propose to switch between sender-initiated and receiverinitiated mode. But this does not solve the fairness issue caused by exposed terminals, as receiver-initiated mode also suffers from exposed terminal problem.
Once the connection is setup, there is no need to send any other requests. UGS is designed and used commonly for Constant Bit Rate (CBR) real-time traffic such as leased-line digital connections (T1/E1) and Voice over IP (VoIP). The main QoS parameters are maximum sustained rate, maximum latency, and tolerated jitter (the maximum delay variation). 16e Mobile WiMAX scheduling have ignored the effect of burst overhead and often ignored the delay and delay jitter constraints [2 to 5]. In this paper, we propose an algorithm for UGS scheduling that includes these features.
Access Networks: 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers (Lecture Notes of the Institute ... and Telecommunications Engineering, 37) by Xiao Jun Hei, Lawrence Cheung