Optimal transmission ranges and code rates for frequency-hop packet radio networks

Author

Subbarao, Madhavi W. ; Hughes, Brian L.

Author_Institution

Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA

Volume

48

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

670

Lastpage

678

Abstract

We consider a frequency-hopping multihop packet radio network using M-ary frequency-shift keying modulation in a Rayleigh fading environment. Each node transmits packets using an extended (n, k) Reed-Solomon code and the slotted ALOHA channel access protocol. For this network, we determine the optimum transmission range, optimum code rate, and optimum slotted ALOHA transmission probability to be used by each node in the network. Tradeoffs in choosing the transmission range and code rate, and the spectral efficiency of the network are captured in a new performance measure, information efficiency, which is analogous to expected forward progress. Maximizing the information efficiency yields the optimum desired network parameters

Keywords

Rayleigh channels; Reed-Solomon codes; access protocols; frequency hop communication; frequency shift keying; land mobile radio; multiuser channels; optimisation; packet radio networks; probability; M-ary FSK modulation; M-ary frequency-shift keying; PRN; Rayleigh fading environment; extended Reed-Solomon code; frequency-hop packet radio networks; information efficiency; mobile packet radio networks; network node; optimal transmission ranges; optimum code rates; optimum network parameters; optimum slotted ALOHA transmission probability; performance measure; slotted ALOHA channel access protocol; spectral efficiency; Access protocols; Error correction codes; Frequency modulation; Frequency shift keying; Helium; Modulation coding; Packet radio networks; Performance analysis; Rayleigh channels; Spread spectrum communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.843134

Filename

843134