Dynamic MAS reallocation module for WiMedia MAC

Taewook Chung, Chulho Chung, Jinha Choi, Jaeseok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, a dynamic MAS reallocation method is proposed for the WiMedia MAC. WiMedia MAC configures a fully distributed network. WiMedia devices communicate during Superframe which is a communication unit in WiMedia MAC. guarantee QoS, WiMedia MAC uses a TDMA based time slot reservation protocol named distributed reservation protocol (DRP). On existing WiMedia networks, if any conflict occurs in the process of DRP reservation, the transmission in the present superframe will be given up and the transmission will be done in the next superframe. When a delay is expected due to a DRP reservation conflict, the dynamic MAS reallocation can search for other MAS in real time to avoid the conflict. By applying the Dynamic MAS reallocation method, the delay (65ms) for the length of a superframe can be prevented and QoS can be guaranteed more effectively. However, due to only a 12 μs timing allowance between beacon period and data period, the process of our proposed method cannot be completed in time if the entire process is handled by software. Therefore, we designed a hardware module for the proposed method and merged it into WiMedia UWB MAC-PHY system.

Original languageEnglish
Title of host publicationProceedings of the 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Number of pages4
Publication statusPublished - 2010
Event2010 Asia Pacific Conference on Circuit and System, APCCAS 2010 - Kuala Lumpur, Malaysia
Duration: 2010 Dec 62010 Dec 9

Publication series

NameIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS


Other2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
CityKuala Lumpur

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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