Title :
A novel access scheme for packet-typed wireless networks CDMA/CS-CF
Author :
Nishimura, Jun-ichi ; Haruki, Tomohiro ; Mutsuura, Kouichi ; Okada, Hiromi
Author_Institution :
Inf. Network Lab., Kansai Univ., Osaka, Japan
Abstract :
We present a novel access scheme called CDMA/CS-CF (code division multiple access/code sense for collision free access), which can transmit two kind of traffic i.e. voice and data efficiently. This scheme avoids the collision of packets that occur in CSMA (code sense multiple access), and can assign codes fairly to terminals. This assignment of codes to terminals is operated autonomously by terminals themselves. This scheme can improve the characteristics of throughput, access delay and packet loss rate. We evaluate the performances of CDMA/CS-CF compared with CDMA/PRMA, and show the validity, numerically. Moreover, we consider enhanced CDMA/CS-CF and show the effectiveness in the environment with hidden terminals
Keywords :
access protocols; code division multiple access; data communication; delays; land mobile radio; packet radio networks; voice communication; CDMA/CS-CF; CDMA/PRMA; access delay; access protocols; base station; code assignment; code division multiple access; code sense for collision free access; cyclic memory; data transmission; hidden terminals; mobile radio; packet loss rate; packet transmission; packet-type wireless networks; throughput; traffic transmission; voice transmission; Access protocols; Base stations; Electronic mail; Environmental economics; Laboratories; Multiaccess communication; Performance evaluation; Road accidents; Throughput; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965090
