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

YangIck Joo | Zendy; Kyeong Hur | Zendy

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

Author(s) -

YangIck Joo,

Kyeong Hur

Publication year - 2011

Publication title -

journal of information and communication convergence engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.28

H-Index - 6

eISSN - 2234-8883

pISSN - 2234-8255

DOI - 10.6109/jicce.2011.9.4.405

Subject(s) - reservation , computer network , computer science , relay , wireless , protocol (science) , transmission (telecommunications) , quality of service , access control , scheme (mathematics) , distributed computing , telecommunications , medicine , power (physics) , mathematical analysis , physics , alternative medicine , mathematics , pathology , quantum mechanics

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.

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