Linear precoding in distributed MIMO systems with partial CSIT
TL;DR: Numerical results demonstrate that WCMS indeed achieves significant gains in distributed MIMO environments with partial CSIT, and is highly suitable for a distributed M IMO system.
read more
Abstract: We study the transmission problem in a distributed multiple-input multiple-output (MIMO) system consisting of several distributed transmitters and a common receiver. Assuming partial channel state information at the transmitter (CSIT), we propose a low-cost weighted channel matching and scattering (WCMS) linear precoding strategy. The proposed precoder can be decomposed into two parallel modules: channel matching (CM) and energy scattering. The signals generated by the CM modules from different transmitters provide a coherent gain with improved power efficiency. The use of the scattering modules provides robustness against CSIT uncertainty. By properly combining these two modules, WCMS can achieve coherent gain proportional to the accuracy of the available CSIT as well as robustness against CSIT error. WCMS is simple and fully decentralized and thus is highly suitable for a distributed MIMO system. Numerical results demonstrate that WCMS indeed achieves significant gains in distributed MIMO environments with partial CSIT.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Non-reciprocal Transceivers in OFDMKDMA Systems: Impact and Mitigation'
Nadia Khaled
- 01 Jan 2003
TL;DR: A novel calibration technique is proposed at the base station that enables to compensate for the non-reciprocity and reduce the MUI to a negligible value while having a low implementation cost.
117
Transmitter Design for Uplink MIMO Systems With Antenna Correlation
TL;DR: This paper studies the uplink transmission in multiple-input multiple-output (MIMO) systems with antenna correlation and shows that a simple CCIT-based scheme, referred to as statistical water-filling (SWF), can perform close to the optimal full CSIT- based one in MIMO systems with more receive antennas than transmit ones.
7
Joint FEC encoder and linear precoder design for MIMO systems with antenna correlation
Chongbin Xu,Peng Wang,Zhonghao Zhang,Li Ping +3 more
- 13 Nov 2014
TL;DR: By adopting a Hadamard precoding technique, it is shown that the EXIT chart type curve of the precoded system is asymptotically determined by the channel correlation matrix at the transmitter as the number of receive antennas tends to infinity.
1
A Two-Way Relay Scheme for Multi-User MIMO Systems with Partial CSIT
Sai Jin,Deyou Zhang,Li Ping +2 more
TL;DR: This letter proposes a MIMO two-way relaying (MTWR) scheme, in which the communication between the BS and a high-mobility MU is assisted by other low-mobilities MUs serving as relays, which produces a beamforming effect that can significantly improve the performance of the high-Mobility MU.
A Novel Phase Error Estimation Algorithm Based on Extended Subspace Projection of Multi-plane Waves Reconstruction Model
Yang Huang,Xiantao Wang,Zhenyu Hou,Zhen Dong +3 more
- 08 Jul 2023
TL;DR: A novel phase error estimation algorithm based on extended subspace projection of multi-plane waves reconstruction model achieves high-precision phase error estimation under low SNR conditions.
References
•Book
Elements of information theory
Thomas M. Cover,Joy A. Thomas +1 more
- 01 Jan 1991
TL;DR: The author examines the role of entropy, inequality, and randomness in the design of codes and the construction of codes in the rapidly changing environment.
Matrix analysis: Frontmatter
Roger A. Horn,Charles R. Johnson +1 more
- 01 Jan 1985
TL;DR: This book presents results of both classic and recent matrix analyses using canonical forms as a unifying theme, and demonstrates their importance in a variety of applications.
21.4K
Fundamentals of statistical signal processing: estimation theory
TL;DR: The Fundamentals of Statistical Signal Processing: Estimation Theory as mentioned in this paper is a seminal work in the field of statistical signal processing, and it has been used extensively in many applications.
Capacity of Multi‐antenna Gaussian Channels
Emre Telatar
- 01 Nov 1999
TL;DR: In this paper, the authors investigate the use of multiple transmitting and/or receiving antennas for single user communications over the additive Gaussian channel with and without fading, and derive formulas for the capacities and error exponents of such channels, and describe computational procedures to evaluate such formulas.
•Book
Fundamentals of Wireless Communication
David Tse,Pramod Viswanath +1 more
- 01 Jan 2005
TL;DR: In this paper, the authors propose a multiuser communication architecture for point-to-point wireless networks with additive Gaussian noise detection and estimation in the context of MIMO networks.
12.4K