Performance comparison of spread ALOHA and CDMA wireless systems

Author

Achi, H. ; Hellany, A. ; Liyana-pathirana, R.

Author_Institution

Sch. of Electr. Eng. & Ind. Design, Univ. of Western Sydney, Penrith South DC, NSW, Australia

fYear

2003

fDate

1-3 Oct. 2003

Firstpage

99

Lastpage

102

Abstract

Wireless multiple access technology has grown over several decades, with new protocols being developed. Spread ALOHA has become one of the advanced techniques promising several advantages over existing conventional and spread spectrum based wireless systems. With spread ALOHA the wireless system becomes simpler, operationally flexible, higher in bandwidth and may accommodate high number of users [Dennis et al., 1997]. In this paper the performance, in terms of throughput and time delay, of spread ALOHA system as compared with code-division-multiple-access (CDMA) is analysed and evaluated in the presence of noise and interference. Mathematical expressions are derived to estimate probability of error, throughput and time delay to compare both wireless systems.

Keywords

access protocols; code division multiple access; delay estimation; error statistics; radiofrequency interference; spread spectrum communication; CDMA wireless system; code division multiple access; mathematical expression; probability of error estimation; spread ALOHA system; throughput estimation; time delay estimation; wireless multiple access technology; Access protocols; Bandwidth; Delay effects; Delay estimation; Interference; Multiaccess communication; Performance analysis; Spread spectrum communication; Throughput; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics and Communications, 2003. ICECom 2003. 17th International Conference on

Print_ISBN

953-6037-39-4

Type

conf

DOI

10.1109/ICECOM.2003.1290964

Filename

1290964