Title :
A slotted CDMA protocol with BER scheduling for wireless multimedia networks
Author :
Akyildiz, Ian F. ; Levine, David A. ; Joe, Inwhee
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
4/1/1999 12:00:00 AM
Abstract :
In future wireless multimedia networks, there will be a mixture of different traffic classes which have their own maximum tolerable bit error rate (BER) requirements. In this paper, a novel medium access control (MAC) protocol called wireless multimedia access control protocol with BER scheduling (in short form, WISPER) for CDMA-based systems is proposed. WISPER utilizes the novel idea of scheduling the transmission of multimedia packets according to their BER requirements. The scheduler assigns priorities to the packets, and performs an iterative procedure to determine a good accommodation of the highest-priority packets in the slots of a frame so that packets with equal or similar BER requirements are transmitted in the same slots. The proposed WISPER protocol has been validated using a software emulator on the cellular environment. Performance evaluation results based on the implementation are also included
Keywords :
access protocols; cellular radio; code division multiple access; error statistics; multimedia communication; packet radio networks; telecommunication traffic; BER scheduling; DS-CDMA; MAC protocol; WISPER; cellular environment; highest-priority packets; iterative procedure; maximum tolerable bit error rate; medium access control protocol; multimedia packet transmission; packet priorities; performance evaluation results; slotted CDMA protocol; software emulator; traffic classes; wireless multimedia access control protocol; wireless multimedia networks; Access protocols; Bit error rate; Communication system traffic control; Electronic mail; Laboratories; Media Access Protocol; Multiaccess communication; Power control; Wireless application protocol; Wireless networks;
Journal_Title :
Networking, IEEE/ACM Transactions on
