A model for local/mobile radio communications with correct packet capture
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Authors
Robertson, R. Clark
Ha, Tri T.
Subjects
Advisors
Date of Issue
1992-04
Date
Publisher
IEEE
Language
Abstract
An analysis of the performance of a local/mobile radio communications system utilizing the slotted ALOHA multiple random access protocol is presented in this paper. The probability of correct packet capture is evaluated for a local/mobile packet radio system using ideal coherent binary phase-shift keying (BPSK) modulation. Both the near/far effect and the effect of Rayleigh fading on the probability of correct packet capture are taken into account, but the effect of thermal noise is neglected since the interference due to competing packets is dominant in practical systems. The probability of correct packet reception is evaluated for a system using spatial diversity. In addition, the effect on system performance of either convolutional coding with hard decision Viterbi decoding or binary linear block coding with hard
decision decoding is evaluated. The pseudo-Bayesian algorithm that has been developed to stabilize
a packet system based on the slotted ALOHA protocol at maximum channel throughput is found to be
adaptable to the local/mobile operating environment. For the slotted ALOHA system considered in
this paper, it is possible to obtain channel throughputs as high as 0.66 provided a spatial
diversity of around ten can be implemented.
Type
Article
Description
Series/Report No
Department
Electrical and Computer Engineering
Organization
Naval Postgraduate School (U.S.)
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NPS Report Number
Sponsors
Funding
Format
8 p.
Citation
R.C. Robertson, T.T. Ha, "A model for local/mobile radio communications with correct packet capture," IEEE Transactions on Communications, v.40, no.3 (April 1992), pp. 847-854.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.