Title :
Layered MAC for High-Rate UWB WPAN System
Author :
Li, Zheng-Ping ; Kuo, Geng-Sheng
Author_Institution :
Nat. Key Lab. of Switching & Networking & Telecommun. Eng. Sch., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
In this paper, we proposed a medium access scheme for high-rate WPAN with ultra wideband (UWB) physical layer (PHY). In this scheme, piconet administration packets and user data packets are transmitted on two different layers which are divided by two spreading codes. Since this scheme needs only two spreading codes, the code can be designed with high autocorrelation and low cross-correlation. Therefore, the issue of complexity caused by the adoption of spreading code is greatly reduced. Moreover, the spreading code can be integrated with the property of UWB, and achieve high system performance. The advantages of the proposed scheme are that administration and data transmissions won´t affect each other and average packet delay can be reduced. Due to the short delay of this scheme and large bandwidth of UWB, this scheme is very suitable for real-time multimedia services.
Keywords :
access protocols; codes; correlation methods; packet radio networks; personal area networks; ultra wideband communication; PHY; autocorrelation; cross-correlation; data transmissions; high-rate UWB WPAN system; layered MAC protocol; packet delay; physical layer; piconet administration packets; real-time multimedia services; spreading codes; ultrawideband technology-personal area networks; user data packets; Access protocols; Delay; Electronic mail; Jitter; Multiaccess communication; Personal area networks; Physical layer; System performance; Timing; Ultra wideband technology;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.147
