计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2013年
12期
291-294,298
,共5页
太阳能供电传感器网络%可靠数据传输%纠错码%凸优化
太暘能供電傳感器網絡%可靠數據傳輸%糾錯碼%凸優化
태양능공전전감기망락%가고수거전수%규착마%철우화
Solar-powered sensor network%Reliable data delivery%Erasure code%Convex optimization0
太阳能供电的传感器节点在电池充满电时会产生过剩的能量,如不加以利用会被浪费。提出一种基于太阳能约束的可靠数据传输方法RDDMSC( Reliable Data Delivery Method based on Solar Constraint ),利用过剩的能量自适应地调整通信中纠错码的冗余度,在网络寿命保持不变的情况下提高传输的可靠性。将问题描述为在有能量约束时最大限度地保证端到端数据包的传输率。证明了在链路质量不差的情况下目标函数一定是凹函数,进而采用凸优化来解决可靠传输问题。实验结果表明,RDDMSC能够有效地使用过剩能量来能够提高数据传输率。
太暘能供電的傳感器節點在電池充滿電時會產生過剩的能量,如不加以利用會被浪費。提齣一種基于太暘能約束的可靠數據傳輸方法RDDMSC( Reliable Data Delivery Method based on Solar Constraint ),利用過剩的能量自適應地調整通信中糾錯碼的冗餘度,在網絡壽命保持不變的情況下提高傳輸的可靠性。將問題描述為在有能量約束時最大限度地保證耑到耑數據包的傳輸率。證明瞭在鏈路質量不差的情況下目標函數一定是凹函數,進而採用凸優化來解決可靠傳輸問題。實驗結果錶明,RDDMSC能夠有效地使用過剩能量來能夠提高數據傳輸率。
태양능공전적전감기절점재전지충만전시회산생과잉적능량,여불가이이용회피낭비。제출일충기우태양능약속적가고수거전수방법RDDMSC( Reliable Data Delivery Method based on Solar Constraint ),이용과잉적능량자괄응지조정통신중규착마적용여도,재망락수명보지불변적정황하제고전수적가고성。장문제묘술위재유능량약속시최대한도지보증단도단수거포적전수솔。증명료재련로질량불차적정황하목표함수일정시요함수,진이채용철우화래해결가고전수문제。실험결과표명,RDDMSC능구유효지사용과잉능량래능구제고수거전수솔。
When the battery is over-charged , the solar-powered sensor nodes tend to generate extra energy .The energy is wasted when it is not utilized.The paper proposes a reliable data delivery method based on solar constraint (RDDMSC), which, by using the surplus energy, adaptively adjusts the redundancy of erasure codes during communication .It enhances the reliability of delivery as the network lifetime is kept untouched.First of all, the problem is described as ensuring at utmost the transmission rate of end-to-end data packages when there is energy constraints.It is proven that when link quality is not bad , the objective function is certainly concave .Hence convex optimization is used to solve the reliable delivery problem.Experimental results demonstrate that RDDMSC can effectively take advantage of surplus energy to improve data delivery rate .