Download or read book Overhead Analysis of Location aware Two phase Coding Multi channel MAC Protocol LA TPCMMP for MANETs written by and published by . This book was released on with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a novel location-aware multi-channel medium access control (MAC) protocol for large-scale dense mobile ad hoc networks (MANETs) based on a scalable two-phase coding scheme, where the first-phase code is used to differentiate adjacent cells and the second-phase code is employed to distinguish nodes in one specific cell. It eliminates the hidden terminal problem (HTP) during data transmission without requiring periodical exchange of neighborhood information. Furthermore, we introduce a collision resolution mechanism in the control channel. We analyze the performance of the proposed protocol in terms of control overhead. Its theoretical results are confirmed by simulations and it is demonstrated that the new protocol significantly outperforms the classical code division multiple access (CDMA) based multi-channel MAC protocols.

Download or read book Proceedings written by Sanjay Jha and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 2004 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cluster adaptive Two phase Coding Multi channel MAC Protocol CA TPCMMP for MANETs written by and published by . This book was released on with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper introduces a novel joint clustering and multi-channel medium access control (MAC) protocol for mobile ad hoc networks (MANETs) based on a scalable two-phase coding scheme, where the first-phase code is used for differentiating the clusters and the second-phase code is employed to distinguish the nodes in a specific cluster. It mitigates the hidden terminal problem (HTP) during data transmission and efficiently incorporates the procedure of code assignment with adaptive clustering. We also introduce the connection detection and confliction resolution mechanisms for the allocation of the first-phase code in the control channel. Simulation results show that substantial improvement in terms of control overhead can be achieved by the proposed protocol over the traditional distributed code division multiple access (CDMA) based multi-channel MAC algorithms with clustering or without clustering.

Download or read book A New Multichannel MAC Protocol for Ad Hoc Networks Based on Two phase Coding with Power Control TPCPC written by and published by . This book was released on with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a new CDMA-based multichannel medium access control protocol for ad hoc networks, which is named as two-phase coding multichannel protocol with power control. The first phase code is used to broaden the area reuse and the second phase code is employed to distinguish between different nodes in one specific area. This algorithm efficiently eliminates hidden terminal and exposed terminal problems during data transmission and greatly increases the throughput. In addition, it has good scalability and can be easily accomplished with GPS. Although many multichannel MAC protocols adopting CDMA techniques have been presented, few have addressed the near-far problem. We incorporate power control in our algorithm and reduce the near-far interference. The implementation of two-phase coding with power control is discussed, and the primary simulation result demonstrates that the proposed protocol offers better performance.