Performance comparison of slotted and unslotted DS/SSMA networks

Author

De Graaf, Peter W. ; Lehnert, James S.

Author_Institution

Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA

fYear

1994

fDate

10-12 May 1994

Firstpage

149

Lastpage

158

Abstract

Throughput and delay for both slotted and unslotted direct-sequence spread-spectrum multiple-access (DS/SSMA) packet radio networks are compared. In both systems, each user employs a newly chosen random signature sequence for each bit in a transmitted packet. Accurate packet success probabilities for both systems are computed using an improved Gaussian approximation technique. Average throughput and delay results are obtained for varying levels of block error correction. The slotted system is shown to have better performance than the unslotted system in all cases

Keywords

Gaussian processes; channel capacity; code division multiple access; delays; packet radio networks; probability; pseudonoise codes; random processes; sequences; spread spectrum communication; Gaussian approximation technique; block error correction; delay; direct-sequence spread-spectrum multiple-access; packet radio networks; packet success probabilities; performance comparison; random signature sequence; slotted DS/SSMA networks; throughput; unslotted DS/SSMA networks; Bandwidth; Binary phase shift keying; Delay; Error correction; Intelligent networks; Multiaccess communication; Packet radio networks; Performance analysis; Spread spectrum communication; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Tactical Communications Conference, 1994. Vol. 1. Digital Technology for the Tactical Communicator., Proceedings of the 1994

Conference_Location

Fort Wayne, IN

Print_ISBN

0-7803-2004-2

Type

conf

DOI

10.1109/TCC.1994.472132

Filename

472132