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An Effective Multimedia Data Transmission in Ad-Hoc Networks Based on Bluetooth  

Kim, Byoung-Kug (고려대학교 전자컴퓨터공학과 미래정보망 연구실)
Hong, Sung-Hwa (고려대학교 전자컴퓨터공학과 미래정보망 연구실)
Hur, Kyeong (경인교육대학교)
Eom, Doo-Seop (고려대학교 전자컴퓨터공학과 미래정보망 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.3B, 2008 , pp. 112-122 More about this Journal
Abstract
Basing on Piconet, The Bluetooth System forms network and transmits data. There is one Master and maximum 7 Slave bluetooth devices in one piconet. A job scheduler performed by Master bluetooth device, gives the chance of data transmission to Slave bluetooth devices, which connected to Master, using polling method in piconet. The maximum data rate is 723.2 kb/s when it uses ACL link with DH5 packet type in a piconet which is constructed by two bluetooth devices. However, if there are one master and two slave devices in a piconet, then the maximum data rate is reduced to a half(361.6kb/s), because a master device has to support same data rate for all connected devices. And, there is the defect in scatternet when data transmission rate becomes low(Maximum rate: 302.2kb/s). This paper proposals the new ad-hoc network topology called "DoublePico"for overcome the low data transmission in scatternet which is constructed by piconets. The method of doublepico that represented in this paper makes high data transfer rate(Maximum rate: 457.57kb/s) in bluetooth ad-hoc networks.
Keywords
Bluetooth; Ad-Hoc; Wireless Network; Home Network; Multimedia;
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