TY - GEN
T1 - Performance analysis of single code spread ALOHA systems
AU - Hellany, A.
AU - Achi, Hassan
PY - 2007
Y1 - 2007
N2 - Spread ALOHA has become one of the advanced multiple access techniques promising several advantages over existing conventional and spread spectrum based wireless systems. Spread ALOHA is currently recognised as a simplified wireless multiple access system which provides a higher bandwidth and may accommodate high number of users. Over the last decade, several models have been developed to predict and estimate the performance of Spread ALOHA. Various combinations of protocols have been employed to enhance performance. This paper investigates the employment of a unique spreading code in conjunction with Spread ALOHA as opposed to the common method of employing distinct spreading codes for all users on the communication channel. In this paper we have modeled and simulated a Single Code Spread ALOHA (SCSA) system together with a conventional CDMA ALOHA system in order to analyse and compare the performance of both systems. Two types of PN codes were used in the simulation models, namely m-sequence and Gold codes. The simulation results showed comparable performance of both systems, and verified the suitability of m-sequence for SCSA and Gold codes for CDMA respectively.
AB - Spread ALOHA has become one of the advanced multiple access techniques promising several advantages over existing conventional and spread spectrum based wireless systems. Spread ALOHA is currently recognised as a simplified wireless multiple access system which provides a higher bandwidth and may accommodate high number of users. Over the last decade, several models have been developed to predict and estimate the performance of Spread ALOHA. Various combinations of protocols have been employed to enhance performance. This paper investigates the employment of a unique spreading code in conjunction with Spread ALOHA as opposed to the common method of employing distinct spreading codes for all users on the communication channel. In this paper we have modeled and simulated a Single Code Spread ALOHA (SCSA) system together with a conventional CDMA ALOHA system in order to analyse and compare the performance of both systems. Two types of PN codes were used in the simulation models, namely m-sequence and Gold codes. The simulation results showed comparable performance of both systems, and verified the suitability of m-sequence for SCSA and Gold codes for CDMA respectively.
UR - http://www.scopus.com/inward/record.url?scp=50649087250&partnerID=8YFLogxK
U2 - 10.1109/ICECS.2007.4511067
DO - 10.1109/ICECS.2007.4511067
M3 - Conference Paper
AN - SCOPUS:50649087250
SN - 1424413788
SN - 9781424413782
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
SP - 617
EP - 620
BT - ICECS 2007 - 14th IEEE International Conference on Electronics, Circuits and Systems
T2 - 14th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2007
Y2 - 11 December 2007 through 14 December 2007
ER -