TAILIEUCHUNG - Báo cáo hóa học: " Transmission scheduling for wireless mesh networks with temporal reuse"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Transmission scheduling for wireless mesh networks with temporal reuse | Luus and Maharaj EURASIP Journal on Wireless Communications and Networking 2011 2011 84 EURASIP Journal on . http content 20ii i 84 Wireless Communications and Networking a Springerữpen Journal RESEARCH Open Access Transmission scheduling for wireless mesh networks with temporal reuse Francois Pierre Sarel Luus and Bodhaswar Tikanath Jugpershad Maharaj Abstract Link-assigned transmission schedules with timeslot reuse by multiple links in both the space and time domains are investigated in this study for stationary multihop wireless mesh networks with both rate and power adaptivity. Specifically cross-layer optimised schedules with proportionally fair end-to-end flow rates and network coding capability are constructed for networks operating under the physical interference model with single-path minimum hop routing. Extending transmission rights in a link-assigned schedule allows for network coding and temporal reuse which increases timeslot usage efficiency when a scheduled link experiences packet depletion. The schedules that suffer from packet depletion are characterised and a generic temporal reuse-aware achievable rate region is derived. Extensive computational experiments show improved schedule capacity quality of service power efficiency and benefit from network coding accrued with schedules optimised in the proposed temporal reuse-aware convex rate region. Keywords Scheduling temporal reuse cross-layer optimisation link-assignment rate region 1 Introduction Wireless mesh networking maintains a strong position in future communications especially since it can extend access from a base station or gateway. This prominent implementation scenario can also provide flexible last mile access for stationary wireless mesh clients instead of more expensive wired options. The focus of this paper is thus on the optimisation of transmission scheduling for stationary wireless mesh networks that use link-assigned scheduling with extended transmission

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