Title :
A modified BER scheduling scheme for wireless multimedia access control protocol
Author :
Fei Long ; Gang Feng ; Chee-Kheong Siew
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.
Abstract :
In future wireless networks, the packet scheduler needs to support heterogeneous classes of traffic with different BER and other QoS requirements. In this paper, we proposed a modified BER scheduling scheme for CDMA networks by combining the existing WISPER scheme with a two-state Markov chain channel model. Four error-deal algorithms are used in this scheme. Simulation experiments based on NS-2 illustrate that the modified scheme can achieve both lower packet loss ratio and lower packet delay compared to the original WISPER scheme
Keywords :
Markov processes; access protocols; code division multiple access; error statistics; multimedia communication; packet radio networks; quality of service; queueing theory; scheduling; telecommunication channels; CDMA network; QoS requirement; WISPER scheme; bit error rate; code division multiplexing; error-deal algorithm; modified BER scheduling scheme; quality of service; two-state Markov chain channel model; wireless multimedia access control protocol; wireless network; Access control; Access protocols; Bit error rate; Communication system traffic control; Delay; Multiaccess communication; Scheduling algorithm; Traffic control; Wireless application protocol; Wireless networks;
Conference_Titel :
Communications Systems, 2004. ICCS 2004. The Ninth International Conference on
Conference_Location :
Singapore, China
Print_ISBN :
0-7803-8549-7
DOI :
10.1109/ICCS.2004.1359368
