A lightweight deterministic MAC protocol using low cross-correlation sequences

Dongho Kim, Danesh J. Esteki, Yih Chun Hu, P. R. Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In traditional wireless networks, two nodes cannot simultaneously transmit their packets to each other with one radio device (having no machinery enabling full duplex). To ensure bidirectional communications, we need a medium access protocol to coordinate neighboring nodes' transmissions. Two conflicting design goals for the medium access protocol are the ease of implementation and performance guarantees. We propose a novel medium access protocol which is easily implementable (not requiring clock synchronization) and guarantees performance (the fraction of available slots). Our basic idea is to exploit a set of binary sequences having provably low cross-correlation. Each node has its own code sequence and determines whether to transmit or receive a packet by sequentially examining each bit of the code sequence. As an example, we consider the application of Gold code sequences and theoretically analyze the the fraction of available slots that a Gold-code- based MAC can provide. Our simulation verifies our analysis and shows that a Gold-code-based MAC guarantees the fraction of available slots even on a short time scale.

Original languageEnglish (US)
Title of host publication2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
DOIs
StatePublished - Dec 1 2011
Event54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 - Houston, TX, United States
Duration: Dec 5 2011Dec 9 2011

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
Country/TerritoryUnited States
CityHouston, TX
Period12/5/1112/9/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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