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http://dx.doi.org/10.7840/kics.2014.39B.5.251

Performance Analysis of Peer Aware Communications with CSMA/CA Based on Overhearing  

Lee, Jewon (Chungnam National University Department of Information and communication)
Ahn, Jae Min (Chungnam National University Department of Information and communication)
Lee, Keunhyung (Electronics and Telecommunications Research Institute Department of USN/IoT Convergence research)
Park, Tae-Joon (Electronics and Telecommunications Research Institute Department of USN/IoT Convergence research)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.39B, no.5, 2014 , pp. 251-259 More about this Journal
Abstract
In this paper, we propose Low Energy Service Discovery (LESD) protocol for common discovery mode of IEEE 802.15.8 Peer Aware Communications (PAC). In order to minimize power consumption, Basic Repetition Block (BRB) is defined. Device is able to select operating mode and synchronize other devices through it. Proposed MAC procedure is Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) based on overhearing technique. Even if device has not been received response signal since transmitted request signal, it is able to discover other devices of same group through the overhearing technique. IEEE 802.15.8 PAC has required that performances of common discovery mode are presented about discovered devices during the simulation time, discovery latency and average power consumption. By considering the number of devices per group and channel environment, two scenarios are evaluated through system level simulation and the simulation results of proposed scheme are compared with CSMA/CA in same simulation conditions. As a result, proposed scheme is able to get high energy efficiency of devices as well as increase the number of discovered devices during simulation time when the longer the number of devices is distributed over a limited area.
Keywords
Peer Aware Communications (PAC); Discovery; Basic Repetition Block (BRB); Overhearing; CSMA/CA;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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