Title :
Delay analysis of IEEE 802.16 wireless metropolitan area network
Author :
Saffer, Zsolt ; Andreev, Sergey
Author_Institution :
Tech. Univ. of Budapest, Budapest
Abstract :
In this paper we present the delay analysis of IEEE 802.16 broadband wireless access network. We assume that the system operates in point-to-multipoint mode with TDD/TDMA scheme. The developed analytical model is used to evaluate the delay-load characteristic. It considers the overall delay including both the contention-free reservation and the scheduling delay and establishes a precise upper bound on it. In order to get first insight into the effect of modeling both kind of delays together, we choose to study a simplified model (Poisson arrivals, bandwidth request message for each data packet and one packet per frame). The analysis applies to the unicast polling bandwidth reservation mechanism. The proposed grouping model uses round-robin scheduling and enables symmetrical load situation. The analytical model is verified by means of simulation.
Keywords :
broadband networks; delays; metropolitan area networks; radio access networks; time division multiple access; time division multiplexing; IEEE 802.16; TDD/TDMA; broadband wireless access network; contention-free reservation; delay analysis; grouping model; round-robin scheduling; scheduling delay; time division duplexing; time division multiple access; wireless metropolitan area network; Analytical models; Bandwidth; Broadcasting; Delay; Media Access Protocol; Metropolitan area networks; Scheduling algorithm; Traffic control; Unicast; Wireless LAN; IEEE 802.16; WMAN; bandwidth reservation; overall delay; performance evaluation; polling; queuing model;
Conference_Titel :
Telecommunications, 2008. ICT 2008. International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4244-2035-3
Electronic_ISBN :
978-1-4244-2036-0
DOI :
10.1109/ICTEL.2008.4652684
