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Performance analysis of a slotted-ALOHA network using error correction and error detection coding with BPSK modulation

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3 Author(s)
Linnartz, J.P.M.G. ; Delft Univ. of Technol., Netherlands ; Groenewegen, M.W.A. ; Prasad, R.

The performance of a slotted ALOHA-network in a slow Rayleigh-fading channel for mobile data communications is investigated considering error correction and detection coding with binary phase shift keying (BPSK) modulation. The performance is measured in terms of receiver error probability and throughput. An enhanced performance is obtained by using error correction coding. In spite of the use of error correction coding, a packet can be in error, i.e. the receiver erroneously detects a codeword that none of the terminals transmitted. Bounded distance decoding can be used effectively to reduce the packet error probability. A comparison of the performance is presented for a specific code with equal Hamming distance dmin, exchanging between the error correcting and error detecting capability of that code. Also, the effects of signal carrier detection on receiver error probability and throughput are investigated

Published in:

Personal, Indoor and Mobile Radio Communications, 1992. Proceedings, PIMRC '92., Third IEEE International Symposium on

Date of Conference:

19-21 Oct 1992