Title :
Performance evaluation of multiple access control schemes for wireless multimedia services
Author :
Kwok, Y.-K. ; Lau, V.K.N.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
fDate :
4/1/2001 12:00:00 AM
Abstract :
Multiple access control (MAC) protocols for a wireless ATM network are required to handle the diverse traffic characteristics in CBR, VBR and ABR data. Considerable research effort expended in tackling the problem has resulted in a myriad of MAC protocols. While each protocol is individually shown to be effective by the respective designers, it is unclear how these different protocols compare with each other on a unified basis. Seven previously proposed TDMA-based MAC protocols for integrated wireless data and voice services are quantitatively compared. Using a time-varying channel model, the protocols are evaluated by simulations. It is found that exploiting the synergy between the MAC and physical layers can lead to a higher performance
Keywords :
access protocols; asynchronous transfer mode; integrated voice/data communication; land mobile radio; multimedia communication; packet radio networks; telecommunication traffic; time division multiple access; time-varying channels; ABR data; CBR data; DPRMA; DQRUMA; DSA++; DTDMA/PR; DTDMA/VR; PRMA/DA; SCAMA; TDMA-based MAC protocols; VBR data; distributed queueing request update multiple access; dynamic TDMA with piggyback reservation; dynamic allocation; dynamic packet reservation multiple access; dynamic slot assignment; integrated wireless data/voice services; mobile terminals; multiple access control protocols; packet reservation multiple access; performance evaluation; physical layers; synergistic channel-adaptive multiple access; time-varying channel model; traffic characteristics; variable rate transmission; wireless ATM network; wireless multimedia services;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:20010160
