Performance analysis of a modified CDMA/PRMA MAC protocol

Authors:
Lian Jian;Erry Gunawan
Affiliations:
School of Electrical and Electronic Engineering, Nanyang Technological University, Block S1, 50 Nanyang Avenue, Singapore, Singapore 639798;School of Electrical and Electronic Engineering, Nanyang Technological University, Block S1, 50 Nanyang Avenue, Singapore, Singapore 639798
Venue:
Computer Communications
Year:
2003

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Abstract

This paper analyzes the performance of a protocol proposed to improve the performance of Joint CDMA/PRMA protocol under heavy data traffic load condition. The proposed protocol features a demand-based assignment scheme for data transmission. Its performance is evaluated using two analysis methods: a Traditional Markov Analysis and a Transient Fluid Analysis. Simulation results are also given to validate the assumptions made in the mathematical models developed. Our work shows that demand-based assignment scheme is suitable for random data traffic transmission, especially when there are a large number of active data terminals with short random messages.