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首頁> 外文期刊>Parallel Algorithms and Applications >A new QoS aware and energy efficient opportunistic routing protocol for wireless sensor networks
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A new QoS aware and energy efficient opportunistic routing protocol for wireless sensor networks

機(jī)譯：用于無線傳感器網(wǎng)絡(luò)的新的QoS感知和高能效機(jī)會路由協(xié)議

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摘要

Energy efficiency and Quality of Service (QoS) providing are known to be critical design concerns in routing protocols for Wireless Sensor Networks (WSNs). Recent studies, demonstrate that Opportunistic Routing (OR) can greatly improve the performance of WSNs by exploiting the broadcast nature of the wireless medium. In this paper, we propose a new QoS aware and Energy efficient Opportunistic Routing protocol (QEOR) to efficiently routing data under QoS and energy constraints for WSNs. QEOR uses a new multi-metric QoS based candidate selection method in order to accurately select and prioritise the candidate forwarders. The selection is focused on a QoS function that takes into consideration the reliabilty of buffers and links, while the prioritisation is established according to transmission delays. To achieve an obvious improvement on the energy consumption, QEOR uses an energy efficient coordination method and an implicit ACKnowledgement scheme for collision and redundancy avoidance. Simulation results show that QEOR provides best performances as compared to other OR protocols.
機(jī)譯：眾所周知，提供能效和服務(wù)質(zhì)量（QoS）是無線傳感器網(wǎng)絡(luò)（WSN）路由協(xié)議中的關(guān)鍵設(shè)計問題。最近的研究表明，機(jī)會路由（OR）可以通過利用無線介質(zhì)的廣播性質(zhì)極大地提高WSN的性能。在本文中，我們提出了一種新的QoS感知和節(jié)能機(jī)會路由協(xié)議（QEOR），以在WSN的QoS和能量約束下有效地路由數(shù)據(jù)。 QEOR使用一種新的基于多度量QoS的候選選擇方法，以便準(zhǔn)確地選擇候選轉(zhuǎn)發(fā)器并確定其優(yōu)先級。選擇的重點是考慮緩沖區(qū)和鏈路可靠性的QoS功能，同時根據(jù)傳輸延遲確定優(yōu)先級。為了顯著改善能耗，QEOR使用了節(jié)能協(xié)調(diào)方法和隱式確認(rèn)方案來避免沖突和冗余。仿真結(jié)果表明，與其他OR協(xié)議相比，QEOR提供了最佳性能。

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