Title :
Performance analysis of slotted NP-ISMA spread spectrum with path diversity in a land mobile satellite channel
Author :
Salama, Atif L. ; Zanfally, R.E. ; Ammar, A.
Abstract :
The performance of a direct sequence spread spectrum with slotted non-persistent inhibit sense multiple access (NP-ISMA) in land mobile satellite packet transmission system, using BPSK modulation and two types of path diversity techniques, namely: selection diversity and maximal ratio combining, is analyzed. The satellite channel is modeled as having shadowed Rician fading characteristics. The throughput is evaluated for slow and fast fading under light, average and heavy shadowing
Keywords :
Rician channels; land mobile radio; mobile satellite communication; multi-access systems; multiuser channels; packet radio networks; phase shift keying; spread spectrum communication; BPSK; average shadowing; direct sequence spread spectrum; fast fading; heavy shadowing; land mobile satellite channel; light shadowing; maximal ratio combining; path diversity; performance analysis; satellite packet transmission system; selection diversity; shadowed Rician fading characteristics; slotted NP-ISMA spread spectrum; slotted nonpersistent inhibit sense multiple access; slow fading; throughput evaluation; Artificial intelligence; Binary phase shift keying; Delay; Diversity reception; Fading; Performance analysis; Satellites; Shadow mapping; Spread spectrum communication; Tiles;
Conference_Titel :
Radio Science Conference, 2001. NRSC 2001. Proceedings of the Eighteenth National
Conference_Location :
Mansoura
Print_ISBN :
977-5031-68-0
DOI :
10.1109/NRSC.2001.929238
