Title :
Evaluation of the spectral efficiency of spread-spectrum multiple-access systems
Author :
Bystrom, M. ; Modestino, J.W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
Abstract :
We present an approach for evaluating the spectral efficiency of a direct-sequence spread-spectrum system based on the channel cutoff rate. The spectral efficiency is evaluated independently of specific forward error control codes, and thus can provide general insight into system performance and parameter tradeoffs
Keywords :
error correction codes; forward error correction; multi-access systems; spectral analysis; spread spectrum communication; DS-SS system; FEC coding; channel cutoff rate; code rate; direct-sequence spread-spectrum system; forward error control codes; parameter tradeoffs; spectral efficiency; spread-spectrum multiple-access systems; system performance; Additive white noise; Error correction; Fading; Gaussian noise; Multiple access interference; Quadrature amplitude modulation; Signal to noise ratio; Spread spectrum communication; System performance; Viterbi algorithm;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866738
