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http://dx.doi.org/10.7236/JIIBC.2013.13.1.259

A TDMA-based Relay Protocol for Voice Communication on a Small Group  

Hwang, Sangho (Dept. of Computer Engineering, Yeungnam University)
Park, Chang-Hyeon (Dept. of Computer Engineering, Yeungnam University)
Ahn, Byoungchul (Dept. of Computer Engineering, Yeungnam University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.13, no.1, 2013 , pp. 259-266 More about this Journal
Abstract
Since the wireless communications have a limited transmission, the devices just around a master node can exchange data. Though Bluetooth and Zigbee support ad hoc, they are not appropriate for real-time voice communications. In this paper, we present a TDMA-based relay protocol for several users to communicate simultaneously. The proposed protocol can relay data or voice to other nodes in real-time by the multi-hop transmission method using TDMA. And the proposed protocol improves the network performance by allocating different frequencies to the slaves depending on the routing path scheduled by the routing table. NS-2 simulation shows that the performance of the proposed protocol is good in terms of the transmission delay and pecket loss probability in the real-time voice transmission.
Keywords
voice transmission; ad hoc; TDMA; relay porotocol;
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Times Cited By KSCI : 1  (Citation Analysis)
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