Title :
Dynamic channel assignment with delay and loss considerations for wireless TDMA LANs
Author :
Passas, Nikos ; Lampropoulos, George ; Merakos, Lazaros
Author_Institution :
Dept. of Inf., Athens Univ., Greece
Abstract :
The scarce available bandwidth and the unpredictable, variable bit rate traffic in modern packet-switched wireless LANs, require an efficient channel allocation scheme. In this paper we make an overview of traditional call-by-call dynamic channel assignment (DCA) methods and propose a novel DCA method that aims at assigning channels in a more dynamic way, based on the quality-of-service (QoS) required by different connections. Although the method can be applied in different wireless environments, here it is used in a wireless ATM LAN, in conjunction with a TDMA/TDD medium access control protocol. Simulation results at the end of the paper show that this kind of methods can improve significantly the performance of the system
Keywords :
access protocols; asynchronous transfer mode; cellular radio; channel allocation; delays; losses; packet radio networks; quality of service; time division multiple access; wireless LAN; CSDCA+; MAC protocol; QoS; TDMA/TDD medium access control protocol; bandwidth; cellular radio systems; delay; dynamic channel assignment; loss; quality-of-service; simulation results; system performance; variable bit rate traffic; wireless ATM LAN; wireless TDMA LAN; Bandwidth; Bit rate; Channel allocation; Delay; Local area networks; Media Access Protocol; Quality of service; Time division multiple access; Wireless LAN; Wireless application protocol;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881414
