TY - GEN
T1 - Dynamic MAS reallocation module for WiMedia MAC
AU - Chung, Taewook
AU - Chung, Chulho
AU - Choi, Jinha
AU - Kim, Jaeseok
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79959248056&partnerID=8YFLogxK
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U2 - 10.1109/APCCAS.2010.5774933
DO - 10.1109/APCCAS.2010.5774933
M3 - Conference contribution
AN - SCOPUS:79959248056
SN - 9781424474561
T3 - IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
SP - 516
EP - 519
BT - Proceedings of the 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
T2 - 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Y2 - 6 December 2010 through 9 December 2010
ER -