Title :
VL-MAC: Virtual Link Based Multi-channel MAC Scheme in WSN
Author :
Juan, Luo ; Hai-Bo, Luo ; Li Ren-fa
Author_Institution :
Sch. of Comput. & Commun., Hunan Univ., Changsha
Abstract :
Multi-channel medium access control can fully utilize frequency resources of PHY layer, which can reduce interference and improve throughput. Aimed at clustered network, A virtual link based multi-channel MAC (VL-MAC) is proposed, which combines TDMA and FDMA. In VL-MAC, Cluster-heads schedule time-slots to achieve non-collision during intra-cluster communication. Inter-cluster communication between cluster heads is based on ldquocommon channel link (virtual link, VL)rdquo. Virtual MIMO is also employed to solve severe collision problem induced by enormous data around Sink node. The simulation indicates interference, latency and energy consumption can be reduced in VL-MAC.
Keywords :
MIMO communication; access protocols; frequency division multiple access; scheduling; time division multiple access; wireless channels; wireless sensor networks; FDMA; PHY layer; TDMA; VL-MAC; cluster-head; common channel link; intra cluster communication; medium access control protocol; multichannel MAC scheme; time-slot scheduling; virtual MIMO; virtual link; wireless sensor network; Delay; Energy consumption; Frequency division multiaccess; Interference; MIMO; Media Access Protocol; Physical layer; Throughput; Time division multiple access; Wireless sensor networks; Multi-channel; Wireless Sensor Network; medium access control; virtual link;
Conference_Titel :
Information Technology: New Generations, 2009. ITNG '09. Sixth International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-3770-2
Electronic_ISBN :
978-0-7695-3596-8
DOI :
10.1109/ITNG.2009.191
