Performance comparison of slotted and unslotted DS/SSMA networks

Throughput and delay for both slotted and unslotted direct-sequence spread-spectrum multiple-access (DS/SSMA) packet radio networks are compared. In both systems, each user employs a newly chosen random signature sequence for each bit in a transmitted packet. Accurate packet success probabilities fo...

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Bibliographic Details
Main Authors: de Graaf, P.W., Lehnert, J.S.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Binary phase shift keying
Delay
Error correction
Intelligent networks
Multiaccess communication
Packet radio networks
Performance analysis
Spread spectrum communication
Throughput
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Summary:Throughput and delay for both slotted and unslotted direct-sequence spread-spectrum multiple-access (DS/SSMA) packet radio networks are compared. In both systems, each user employs a newly chosen random signature sequence for each bit in a transmitted packet. Accurate packet success probabilities for both systems are computed using an improved Gaussian approximation technique. Average throughput and delay results are obtained for varying levels of block error correction. The slotted system is shown to have better performance than the unslotted system in all cases.< >
DOI:10.1109/TCC.1994.472132