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Analysis of an error control protocol for spread spectrum communication networks

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2 Author(s)
Songchar Jiang ; Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA ; Hsiao, M.-T.T.

The authors evaluate the performance of spread spectrum multiple access packet radio networks under a simple hybrid-ARQ (automatic-repeat-request) scheme using convolutional encoding and Viterbi decoding with repeat request. This scheme can achieve improved reliability with only a slight degradation in throughput. A shorter length of chip sequences (or frequency hopping patterns) or a required smaller transmitting power can be implemented under this scheme while still accomplishing the desired reliability. The retransmission and additional delay can be controlled by adjusting a threshold level. This hybrid scheme offers a more flexible set of parameters from which individual users can choose. The evaluation of packet error probability, throughput, and delay is investigated and numerically presented

Published in:

Communications, 1991. ICC '91, Conference Record. IEEE International Conference on

Date of Conference:

23-26 Jun 1991