Advertisement
Published in:
2006 | OriginalPaper | Chapter
A Multi-channel MAC Protocol with Dynamic Channel Allocation in CDMA Ad Hoc Networks
Authors : Jigang Qiu, Guangbin Fan, Huijie Li, Xiaokang Lin
Published in: Advances in Multimedia Information Processing - PCM 2006
Publisher: Springer Berlin Heidelberg
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
It is a challenging task to design an efficient MAC protocol in Ad Hoc networks due to the lack of central control equipments. In this paper, a new multi-channel MAC protocols with dynamic channel allocation in CDMA Ad Hoc networks, MMAC-DCA, is presented. In MMAC-DCA, the wireless channel is divided into one common sub-channel and L service sub-channels by CDMA mechanism. All the nodes exchange RTS and CTS on the common sub-channel to reserve the service sub-channels for transmission. Different from the MACA/C-T and C-T, the service sub-channels are allocated dynamically in the distributed mode only when a node has a package to transmit. The protocol can reduce the number of spreading codes required and increase the throughput normalized by available bandwidth. In addition, a Markov mode is presented to analyze the performance of this protocol in theory including the normalized throughput and the transfer delay of data packages.