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您的检索式：作者名="Aidong MEN"
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| 1 | Variable length dynamic addressing based on network traffic distribution in wireless sensor networks显示文摘In this paper,a novel dynamic addressing scheme for wireless sensor networks(WSNs)is proposed by using variable length coding.A WSN is typically composed of numerous tiny energy-constrained sensor nodes with limited information processing and data storage capabilities;thus,the energy-efficient strategy is the key issue in designing protocols for WSN.Traditional addressing strategies adopt flat addressing(static and uniform addresses)for sensor nodes.However,the proposed variable length dynamic addressing(VLDA)for sensor nodes is based on the fact that different nodes in the network have uneven traffic loads.Therefore,nodes with more data to receive or send are allocated with shorter addresses.Whether a node is busy or not is determined by the network traffic distribution(NTD),which is defined as the number of data packets each node has received or sent in a period of time.Sensor nodes’energy is saved by VLDA scheme;hence,the wireless sensor network’s lifetime is extended.In the simulation,a 20%improvement has been achieved through the addressing scheme compared to traditional flat addressing. | Jun ZHAN Bo YANG Aidong MEN | 2010 | Frontiers of Electrical and Electronic Engineering in China2010，5，1： | 0 |
| 2 | Digital Television Transmission System-Synchronization, Multiplex and Audio Technology显示文摘AbstractWiththeestablishmentofthedigitalcommunicationsystem,thecurrentanalogtelevisiontransmissionnetworkswillbereplacedbydigitalTVtransmission,whichdemandsthedigitaliZationofTVsignal.Thedigitizedimageshavesohighratethatcompressioncodingmethodsmustbe... | Men Aidong directed by Quan Ziyi | 1999 | The Journal of China Universities of Posts and Telecommunications1999，6，1： | 0 |
| 3 | Carrier Frequency Offset Estimation for FM and Symbiotic FM Radio Data System Hybrid Signal显示文摘The symbiotic FM radio data system(SRDS)is a radio data system that a specially designed OFDM signal co-lives with FM signal,which enables a significantly higher data rate than existing radio data systems.The cyclic prefix of the OFDM symbol has the same length as the OFDM body,which enables the analytic separation of the co-channel OFDM and FM signal at receiver side,utilizing the fact that the OFDM body and prefix is equal.In this work,we show that the OFDM body and prefix cannot be viewed as equal when there is sufficient carrier frequency offset(CFO).Thus,we propose a two-step CFO estimation algorithm for FM and SRDS hybrid signal.The first step estimates the coarse CFO by exploring the characteristics of the FM signal.Once the coarse CFO is removed,the residual CFO is small enough for FM and OFDM separation.The second step fine estimates CFO from the OFDM-only signal using its repeated PN structure after the separation.Detailed mathematical equations are formulated and simulation results are given.The results show that the proposed algorithm works fine with the simulation setup and has a final residual CFO less than 3.9Hz. | Fei Wang Xi Chen Aidong Men Lei Zhang Sheng Wu | 2020 | China Communications2020，17，1： | 0 |
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