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检索条件"主题词=Concave Programming"
311 条 记 录,以下是271-280 订阅
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Energy Efficient Two-way AF Relay System with Multiple-antennas
Energy Efficient Two-way AF Relay System with Multiple-anten...
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IEEE 74th Vehicular Technology Conference (VTC)
作者: Kim, Hongjoon Lee, Namjeong Kang, Joonhyuk Korea Adv Inst Sci & Technol KAIST Taejon South Korea
In this paper, we study an energy efficient two-way amplify-and-forward (AF) relay network equipped with multiple antennas at both sources and relay. To minimize the transmit power while satisfying quality of service ... 详细信息
来源: 评论
Linear MMSE Precoding and Equalization for Network MIMO with Partial Cooperation
Linear MMSE Precoding and Equalization for Network MIMO with...
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54th Annual IEEE Global Telecommunications Conference (GLOBECOM)
作者: Kaviani, Saeed Simeone, Osvaldo Krzymien, Witold A. Shamai (Shitz), Shlomo Univ Alberta TRLabs Edmonton AB Canada New Jersey Inst Technol CWCSPR Newark NJ 07102 USA Technion Israel Inst Technol Dept Elect Engn Haifa Israel
A cellular multiple-input multiple-output (MIMO) downlink system is studied in which each base station (BS) transmits to some of the users, so that each user receives its intended signal from a subset of the BSs. This... 详细信息
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On Using Multi-State Spectrum Sensing for Joint Detection and Transmission in Opportunistic Spectrum Sharing
On Using Multi-State Spectrum Sensing for Joint Detection an...
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54th Annual IEEE Global Telecommunications Conference (GLOBECOM)
作者: Tsai, Jiun-Shian Hsieh, Hung-Yun Natl Taiwan Univ Grad Inst Commun Engn Taipei 106 Taiwan
In this paper, we investigate the problem of opportunistic spectrum sharing through joint optimization of spectrum hole detection and transmission power control. Unlike conventional spectrum sensing models that classi... 详细信息
来源: 评论
Optimum Multi-user Detection by Nonsmooth Optimization
Optimum Multi-user Detection by Nonsmooth Optimization
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IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: Tuan, H. D. Son, T. T. Tuy, H. Nguyen, H. H. Univ New S Wales Sydney NSW 2071 Australia Toyota Technol Inst Nagoya Aichi 468 Japan Inst Matemat Hanoi 10307 Vietnam Univ Saskatchewan Saskatoon SK Canada
The optimum multiuser detection (OMD) is a discrete (binary) optimization. The previously developed approaches often relax it by a semi-definite program (SDP) and then employ randomization for searching the optimal so... 详细信息
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Polytope of Correct (Linear programming) Decoding and Low-Weight Pseudo-Codewords
Polytope of Correct (Linear Programming) Decoding and Low-We...
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IEEE International Symposium on Information Theory (ISIT)
作者: Chertkov, Michael Stepanov, Mikhail LANL CNLS Los Alamos NM 87545 USA Univ Kaiserslautern Dept Math D-67663 Kaiserslautern Germany
We analyze Linear programming (LP) decoding of graphical binary codes operating over soft-output, symmetric and log-concave channels. We show that the error-surface, separating domain of the correct decoding from doma... 详细信息
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Low Complexity Semi-Blind Channel Estimation Algorithm in Two-Way Relay Networks
Low Complexity Semi-Blind Channel Estimation Algorithm in Tw...
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22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
作者: Zhao, Qiong Zhou, Zhendong Vucetic, Branka Univ Sydney Sch Elect & Informat Engn Sydney NSW 2006 Australia
In this work, we propose a low complexity semi-blind channel estimation algorithm, referred to as the variance squared maximum likelihood (VSML) estimator, which employs only one training symbol in each channel estima... 详细信息
来源: 评论
Optimized Solutions for Beamforming Problems in Amplify-Forward Wireless Relay Networks
Optimized Solutions for Beamforming Problems in Amplify-Forw...
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54th Annual IEEE Global Telecommunications Conference (GLOBECOM)
作者: Phan, A. H. Tuan, H. D. Kha, H. H. Univ New South Wales Sch EET Sydney NSW 2052 Australia Univ Technol Sch Informat Technol & Engn Sydney NSW Australia
Beamforming problems in amlify-forward (AF) wireless relay network can be formulated as nonconvex quadratically constrained quadratic programming (QCQP) problems which is very difficult to solve directly. Generally, b... 详细信息
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Towards a Fair Non-convex Resource Allocation in Wireless Networks
Towards a Fair Non-convex Resource Allocation in Wireless Ne...
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22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
作者: Tychogiorgos, G. Gkelias, A. Leung, K. K. Univ London Imperial Coll Sci Technol & Med London SW7 2AZ England
This paper presents a non-convex optimization framework for the Network Utility Maximization problem in Wireless Networks, which incorporates the interference among links and introduces a power penalty term in the obj... 详细信息
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OPTIMAL RESOURCE ALLOCATION IN OFDMA DOWNLINK SYSTEMS WITH IMPERFECT CSI
OPTIMAL RESOURCE ALLOCATION IN OFDMA DOWNLINK SYSTEMS WITH I...
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12th IEEE International Workshop on Signal Processing Advances in Wireless Communications
作者: Aggarwal, Rohit Assaad, Mohamad Koksal, C. Emre Schniter, Philip Ohio State Univ Dept ECE Columbus OH 43210 USA Supelac Dept Telecom Gif Sur Yvette France
In this paper, we address the problem of joint scheduling and resource allocation in the downlink of an orthogonal frequency division multiple access (OFDMA)-based wireless network when the per-user SNR is known only ... 详细信息
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Power Efficient Resource Allocation in Uplink SC-FDMA Systems
Power Efficient Resource Allocation in Uplink SC-FDMA System...
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22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
作者: Ahmad, Ayaz Assaad, Mohamad SUPELEC Dept Telecommun F-91192 Gif Sur Yvette France
In this paper, we study sum-power minimization problem in SC-FDMA which is adopted as the multiple access scheme for uplink in the 3GPP-LTE standard. Unlike OFDMA, in addition to the restriction of allocating a sub-ch... 详细信息
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