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RESEARCH PRODUCT
Enabling Backoff for SCM Wake-Up Radio: Protocol and Modeling
Debasish GhoseFrank Y. Lisubject
Exponential backoffMarkov chainbusiness.industryComputer scienceNode (networking)ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS010401 analytical chemistryReal-time computing020206 networking & telecommunicationsThroughput02 engineering and technology01 natural sciences0104 chemical sciencesComputer Science ApplicationsModulationModeling and Simulation0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringbusinessWireless sensor networkComputer networkEfficient energy useData transmissiondescription
In sub-carrier modulation (SCM) wake-up radio (WuR) enabled wireless sensor networks, a node can initiate data transmission at any instant of time. In this letter, we propose to activate a backoff procedure before sending wake-up calls (WuCs) in order to avoid potential collisions among WuCs. Consequently, no backoff is needed for the main radio after a WuC is received. A discrete-time Markov chain model is developed to evaluate the performance. Numerical results on network throughput, energy efficiency, average delay, and collision probability reveal the benefits of enabling backoff for SCM-WuRs, especially under heavy traffic loads or saturated traffic conditions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-05-01 | IEEE Communications Letters |