Title :
Performance comparison of slotted and unslotted DS/SSMA networks
Author :
De Graaf, Peter W. ; Lehnert, James S.
Author_Institution :
Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
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
Keywords :
Gaussian processes; channel capacity; code division multiple access; delays; packet radio networks; probability; pseudonoise codes; random processes; sequences; spread spectrum communication; Gaussian approximation technique; block error correction; delay; direct-sequence spread-spectrum multiple-access; packet radio networks; packet success probabilities; performance comparison; random signature sequence; slotted DS/SSMA networks; throughput; unslotted DS/SSMA networks; Bandwidth; Binary phase shift keying; Delay; Error correction; Intelligent networks; Multiaccess communication; Packet radio networks; Performance analysis; Spread spectrum communication; Throughput;
Conference_Titel :
Tactical Communications Conference, 1994. Vol. 1. Digital Technology for the Tactical Communicator., Proceedings of the 1994
Conference_Location :
Fort Wayne, IN
Print_ISBN :
0-7803-2004-2
DOI :
10.1109/TCC.1994.472132
