[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.6109/jicce.2011.9.4.405

A Conflict-Avoided Resource Reservation using Reservation Diversity for UWB WPAN with Distributed MAC Protocol

Joo, Yang-Ick (Department of Electronics Engineering, Korea University)
Hur, Kyeong (Department of Computer Education. Gyeongin National University of Education)

Publication Information

Journal of information and communication convergence engineering / v.9, no.4, 2011 , pp. 405-410 More about this Journal

Abstract

In this paper, a conflict-avoided resource reservation scheme for UWB (Ultra Wide Band) WPAN (Wireless Personal Area Network) with D-MAC (Distributed Medium Access Control) is proposed. Since distributed characteristic of the WiMedia D-MAC supporting DRP (Distributed Reservation Protocol) scheme may cause lots of conflicts, overall performances of the WiMedia D-MAC can be deteriorated. In addition, once a DRP conflict occurs, only one of the DRP reservations involved in that DRP conflict maintains the reserved MASs, while the other DRP reservation must be terminated and DRP negotiations for them have to be re-started. Such DRP termination and renegotiation time delays due to the DRP conflicts can be a critical problem to the mobile devices transceiving real-time QoS traffic streams. Therefore, we propose a mechanism to avoid DRP conflicts by providing a kind of path diversity using relay transmission scheme and demonstrate its performance improvements via simulation results.

Keywords

WiMedia; Distributed MAC; WPAN; UWB; Distributed Reservation Protocol (DRP); Relay;

Citations & Related Records

Reference

1	WiMedia Alliance, "Distributed Medium Access Control (MAC) for Wireless Networks," WiMedia MAC Release Spec. 1.5, December, 2009, http://www.wimedia.org/en/index.asp.
2	IEEE 802.15.3, "Wireless Medium Access Control and Physical Layer Specification for High Rate Wireless Personal Area Networks," 2003.
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