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http://dx.doi.org/10.7840/kics.2013.38C.3.239

A Design of TDMA/TDD MAC Protocol for Full-Duplex Multi-User Voice Communication Systems Based on Sensor Network  

Kim, Jisoo (한양대학교 전자컴퓨터통신공학과 임베디드무선통신연구실)
Lee, Jae Hyoung (한양대학교 전자컴퓨터통신공학과 임베디드무선통신연구실)
Cho, Sung Ho (한양대학교 전자컴퓨터통신공학과 임베디드무선통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38C, no.3, 2013 , pp. 239-246 More about this Journal
Abstract
The IEEE 802.15.4 offers standard about PHY and MAC layer and features low power, low bandwidth, and low speed data communication. Because of this reason, IEEE 802.15.4 is only within a limited range such as sensor detection and home network; nevertheless, the research about transmission multimedia data like voice packet through wireless sensor networks is conducted widely. In this paper, we proposed the group communication system based on the sensor network. TDMA/TDD MAC based on the IEEE 802.15.4 PHY for voice communication on the sensor network is designed by improvement existing peer-to-peer voice communication on the sensor network and hardware is implemented for group communication. To measure the quality of designed system, mean opinion score (MOS) is obtained from the experiment and verified by using sine wave method. As a result of an experiment, we expect that a many cases of application solution can be developed using presented system.
Keywords
Voice over Sensor Networks (VoSN); IEEE 802.15.4; TDMA/TDD; Group Communication;
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  • Reference
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