云南高校图书馆联盟文献共享服务平台- OFDM

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Deep learning-based symbol detection algorithm in IMDD-OOFDM system: 《The Journal of China Universities of Posts and Telecommunications》2022年第6期36-45,共10页Zhang Huibin Li Tianzhu Liu Haojiang Li Zhuotong; supported by the National Natural Science Foundation of China(61831003).; In the current research on intensity-modulation and direct-detection optical orthogonal frequency division multiplexing(IMDD-OOFDM) system, effective channel compensation is a key factor to improve system performance....; 关键词：echo state network(ESN) channel estimation channel compensation symbol synchronization training sequence

Compressed sensing based channel estimation used in non-sample-spaced multipath channels of OFDM system被引量：5: 《The Journal of China Universities of Posts and Telecommunications》2015年第2期31-37,共7页Chen Baohao Cui Qimei Yang Fan; supported by the National Science and Technology Major Project (2012ZX03001039-002); By virtue of an increase in spectral efficiency by reducing the transmitted pilot tones, the compressed sensing （CS） has been widely applied to pilot-aided sparse channel estimation in orthogonal frequency division ...; 关键词：channel estimation model-based compressed sensing non-sample-spaced multipath channels

Cross-layer scheduling with fairness for multi-user OFDM system:a restless bandit approach被引量：1: 《The Journal of China Universities of Posts and Telecommunications》2011年第4期25-30,共6页GE Wen-dong JI Hong LI Xi; supported by the National Natural science Foundation of China (2009ZX03002-014);the National Youth Science Foundation (61001115); In OFDM-based System such as long term evolution （LTE）, the scheduling scheme plays an essential role in not only improving the capacity of system, but also guarantee the fairness among the user equipments （UEs）. ...; 关键词：multi-user OFDM SCHEDULING cross-layer design restless bandits

System utility based resource allocation for multi-cell OFDM system: 《The Journal of China Universities of Posts and Telecommunications》2010年第2期14-18,45,共6页HAO Zhi-jie XU Xiao-dong ZHAO Ying-hong TAO Xiao-feng LI Lin-jun ZHANG Zhong-qi; supported by the Beijing Science and Technology Commission project (D08080100620802);the International Scientific and Technological Cooperation Projects in China and Sweden (2008DFA12110);the National Science and Technology Special Project (2009ZX03003-011);the National Natural Science Foundation of China (60872048); Utility based resource allocation strategy in multi-cell orthogonal frequency-division multiplexing （OFDM） system plays a critical role in next generation mobile communication systems. Based on the analysis of risk ...; 关键词：OFDM resource allocation UTILITY MULTI-CELL

Resource allocation based on genetic algorithm for multi-hop OFDM system with non-regenerative relaying: 《The Journal of China Universities of Posts and Telecommunications》2009年第5期25-32,共8页SHI Jie , XU Wen-jun, HE Zhi-qiang, NIU Kai, WU Wei-ling School of Information and Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China; supported by the National Basic Research Program of China (2007CB310604, 2009CB320401);the National Natural Science Foundation of China (60772108, 60702048); This article investigates resource allocation in multi-hop orthogonal frequency division multiplexing （OFDM） system with amplifying-and-forwarding relaying to maximize the end-to-end capacity, Most existing methods ...; 关键词：multi-hop OFDM system non-regenerative relaying genetic algorithm power allocation subcarrier selection resource allocation

Performance of degree distribution based HARQ scheme for LDPC-coded OFDM system被引量：3: 《The Journal of China Universities of Posts and Telecommunications》2009年第1期47-50,共4页LI Xue-hua CAO Yi-qing LI Zhen-song YANG Da-cheng; supported by the National Natural Science Foundation of China (60501007).; This article studies the degree distribution property of low density parity check （LDPC） codes by Gaussian approximation （GA） and presents an efficient hybrid automatic repeat quest （HARQ） scheme for LDPC-coded ...; 关键词：LDPC codes HARQ degree distribution GA OFDM

Max-utility subcarrier allocation for heterogeneous services in wireless OFDM system: 《The Journal of China Universities of Posts and Telecommunications》2009年第1期51-57,共7页CHEN Zi-xiong SUN Kai YUAN Jun WANG Ying; supported by the National Natural Science Foundation of China (60496312);the Hi-Tech Research and Development Program of China (2006AA01Z260).; In future wireless network, one user will require multiple homogeneous or heterogeneous services simultaneously. Then, the scheduling algorithm is not only responsible for assigning a resource block to different users...; 关键词：heterogeneous service multiuser diversity radio resource scheduling utility function

Phase noise approximation analysis for the OFDM system被引量：1: 《The Journal of China Universities of Posts and Telecommunications》2007年第3期95-98,107,共5页TANG Jing SHEN Shu-qun; The influence of phase noise（PN） present at the access point（AP） and mobile terminator（MT） may degrade the performance in orthogonal frequency division multiplexing （OFDM） system, because the OFDM system is se...; 关键词：inter-carrier interference（ICI） phase noise cancellation common phase error （CPE）

A New OFDM System Based on Lifting Wavelet Transform for Wireless Channel被引量：2: 《The Journal of China Universities of Posts and Telecommunications》2005年第3期21-25,共5页GAO Jian-bo ZHAO Er-yuan; It is well known that the Orthogonal Frequency Division Multiplexing （ OFDM ） system has a high ability to overcome the effect of multipath and can obtain high spectral efficiency in the wireless communication chann...; 关键词：OFDM 4G wavelet transform lifting theory. the second generation wavelet signal processing

A Novel Medium Access Control for Ad hoc Networks Based on OFDM System被引量：1: 《The Journal of China Universities of Posts and Telecommunications》2005年第2期6-12,共7页YU Yi-fan YIN Chang-chuan YUE Guang-xin; This workis supported by National Natural Science Foundation of China (90104018 and 60172052) ,and National"863"High Technology Project(2003AA12331004) .; Recently, hosts of Medium Access Control （MAC） protocols for Ad hoc radio networks have been proposed to solve the hidden terminal problem and exposed terminal problem. However most of them take into no account the ...; 关键词：DBTMA OFDM medium access control 802. lla Ad hoc

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