Use of code sensing technique in the receiver-based spreading code protocol and its performance analysis

Author

Chen, X.H. ; Lu, W.X. ; Oksman, J.

Author_Institution

Dept. of Electr. Eng., Oulu Univ., Finland

Volume

139

Issue

1

fYear

1992

Firstpage

85

Lastpage

90

Abstract

Packet conflicts in an asynchronous distributed CDMA packet radio network is a main cause of throughput inefficiency and network instability. To reduce the packet conflicts due to random packet initiations in the network an alternative collision-avoiding CDMA protocol, the receiver-based (R) spreading code sensing protocol, is proposed and its performance is numerically analysed. The results reveal that, by using the code-sensing technique in the conventional receiver-based spreading code protocol, the throughput-delay performance and the stability of the network can be dramatically improved. The results are also compared with those of other CDMA spreading code protocols without code sensing. A two-dimensional time-continuous Markov chain model for the R code sensing protocol is developed to evaluate its steady-state performance.<>

Keywords

code division multiple access; packet switching; protocols; radio networks; radio receivers; spread spectrum communication; 2D time continuous model; CDMA packet radio network; CDMA protocol; Markov chain model; code sensing technique; collision avoidance; network instability; network stability; numerical analysis; packet conflicts; performance analysis; receiver; spread spectrum communication; spreading code protocol; steady-state performance; throughput-delay performance;

fLanguage

English

Journal_Title

Communications, Speech and Vision, IEE Proceedings I

Publisher

iet

ISSN

0956-3776

Type

jour

Filename

122026