Title :
Effect of non-perfect codes on the throughput-delay performance of spread spectrum packet network
Author :
Abdelmonem, Ahmed H. ; Saadawi, Taret N.
Author_Institution :
Dept. of Electr. Eng., City Coll. of New York, NY, USA
Abstract :
A continuous-time Markov chain model for an asynchronous communication spread-spectrum CDMA (code-division multiple-access) network is developed. The receiver-based code is considered; a station with a packet to send looks up the destination´s code and transmits on that code. The authors´ approach is based on a two-dimensional Markov chain model and allows them to study the effect of nonperfect (quasiorthogonal) codes on the performance of the spread-spectrum packet network. Steady-state results for throughput versus offered traffic and the delay versus throughput are obtained. The model is illustrated by examples, the stability of the network is discussed, and ALOHA and CDMA are compared
Keywords :
Markov processes; codes; delays; multi-access systems; packet switching; radio networks; spread spectrum communication; ALOHA; CDMA; asynchronous communication network; code-division multiple-access; continuous-time Markov chain model; nonperfect codes; quasiorthogonal codes; receiver-based code; spread spectrum packet network; stability; throughput-delay performance; Access protocols; Cities and towns; Delay; Interference; Military communication; Multiaccess communication; Packet radio networks; Spread spectrum communication; Stability; Throughput;
Conference_Titel :
Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on
Conference_Location :
Philadelphia, PA
DOI :
10.1109/ICC.1988.13557
