Title :
Capacity of synchronous coded DS- SFH- and FFB-SSMA for wireless local communications
Author :
Wu, Tsung-Cheng ; Chao, Chi-chao ; Chen, Kwang-Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
The performance of synchronous spread spectrum multiple access (SSMA) communications based on direct-sequence (DS), slow frequency hopped (SFH) and fast frequency hopped (FFH) systems for wireless local communications or micro-cellular personal communications is analyzed. By assuming an indoor multipath fading channel model with clusters of arriving rays, the investigations include the multi-user DS systems with selective combining (SC) diversity reception, multi-user SFH systems with equal-gain (EG) diversity receptions and multi-user FFH systems with correlated equal-gain and self-normalization (SN) combinings. Bit error probabilities of FFH-SSMA with EG and SN combinings are derived in closed form. Reed Solomon RS(15,11) codes are considered to improve the system performance. Given a fixed available bandwidth, the system capacities are summarized
Keywords :
Reed-Solomon codes; cellular radio; channel capacity; code division multiple access; diversity reception; error statistics; fading; frequency hop communication; indoor radio; land mobile radio; multipath channels; personal communication networks; pseudonoise codes; spread spectrum communication; synchronisation; Reed Solomon (15,11) codes; bit error probabilities; combining diversity reception; correlated equal-gain combining; direct-sequence systems; equal-gain diversity receptions; fast frequency hopped systems; indoor multipath fading channel model; micro-cellular personal communications; multi-user systems; self-normalization combining; slow frequency hopped systems; synchronous spread spectrum multiple access; system capacities; wireless local communications; Diversity reception; Error probability; Fading; Frequency; Performance analysis; Reed-Solomon codes; Spread spectrum communication; System performance; Tin; Wireless communication;
Conference_Titel :
Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2486-2
DOI :
10.1109/ICC.1995.524264
