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adaptive resource allocation Algorithm for Internet of Things with Bandwidth Constraint

Transactions of Tianjin University 2012年第4期18卷 253-258页

作者：李征刘开华苏育挺马永涛 School of Electronic Information Engineering Tianjin University

In order to improve the transmission accuracy and efficiency of sensing and actuating signals in Internet of Things （loT） and ensure the system stability, an adaptive resource allocation algorithm is proposed, which dynami- cally assigns the network bandwidth and priority among components according to their signals＇ frequency domain characteristics. A remote sensed and controlled unmanned ground vehicle （UGV） path tracking test-bed was devel- oped and multiple UGV＇s tracking error signals were measured in the simulation for performance evaluation. Results show that with the same network bandwidth constraints, the proposed algorithm can reduce,, the accumulated and maximum errors of UGV path tracking by over 60% compared with the conventional static algorithm.

关键词： Intemet of Things bandwidth constraint adaptive resource allocation sampling rate scheduling

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adaptive resource allocation TECHNIQUES IN OFDMA USING CROSS-LAYER ARCHITECTURE

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Journal of Electronics(China) 2005年第6期22卷 586-593页

作者： Yang Xiang Wei Gang Dept of Electronic and Information Eng. South China University of Tech. Guangzhou 510640 China

This paper utilizes the cross-layer architecture to implement adaptive resource allocation in Orthogonal Frequency Division Multiple Access （OFDMA） based on the broadband wireless access system. According to the cross-layer architecture, the information in link layer is used for adaptive resource allocation in OFMDA. A new cross-layer adaptive resource allocation algorithm is developed which can guarantee the users to be in minimum average waiting time in link-layer and get the better spectrum utilization. Numerical results show that our scheme is appealing and can get about half of average waiting time less and 0.5 bps/Hz spectrum utilization more than the scheme in 1EEE802.16a.

关键词： Broadband Wireless Access (BWA) Cross-layer Orthogonal Frequency Division Multiple Access (OFDMA) Quality of Service (QoS) adaptive resource allocation

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resource allocation algorithm for multi-user MIMO-OFDM downlink with correlated channels

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Frontiers of Electrical and Electronic Engineering in China 2008年第3期3卷 301-305页

作者： Chengwen ZHANG Zhongzhao ZHANG Weixiao MENG Communication Research Center Harbin Institute of TechnologyHarbin 150080China

To minimize transmitting power,an adaptive resource allocation algorithm is proposed for multi-user multiple input multiple output-orthogonal frequency division multiplexing(MIMO-OFDM)downlink with correlated channels,which,based on the user’s grouping according to their spatial correlations,combines the shared manner and the exclusive manner to allocate *** different groups the shared manner with a null steering method based on group marginal users is applied,whereas within a group the exclusive manner is *** simulations show that the power efficiency and spectral efficiency are improved;the base station transmitting antenna number and the computational complexity is decreased.

关键词： MIMO-OFDM multi-user adaptive resource allocation co-channel interference(CCI) null steering

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