Precoding methods for multi-user tdd MIMO systems

Jubin Jose; Alexei Ashikhmin; Phil Whiting; Ram Sri Vishwanath

doi:10.1109/ALLERTON.2008.4797634

Precoding methods for multi-user tdd MIMO systems

Jubin Jose^*, Alexei Ashikhmin, Phil Whiting, Ram Sri Vishwanath

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

2 Citations (Scopus)

Abstract

We present linear precoding methods for down-link transmission in multi-user multiple-input multiple-output (MIMO) systems where channel state information (CSI) can be obtained through training. In this paper, channel training overhead and estimation error are rigorously accounted for while determining the net system throughput. First, we consider the case with training on the reverse link only. We study a precoding method which is a combination of two schemes: selection of users with largest estimated gains and zero-forcing to selected users. Next, we consider the case with training on both reverse and forward links. We obtain a lower bound on the weighted-sum capacity, and propose an algorithm to determine an efficient precoding matrix. This precoding method effectively utilizes the training on the reverse and forward links in improving net throughput.

Original language	English
Title of host publication	46th Annual Allerton Conference on Communication, Control, and Computing
Subtitle of host publication	proceedings: 24-26 September 2008, Monticello, IL
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	761-767
Number of pages	7
ISBN (Print)	9781424429264
DOIs	https://doi.org/10.1109/ALLERTON.2008.4797634
Publication status	Published - 2008
Externally published	Yes
Event	46th Annual Allerton Conference on Communication, Control, and Computing - Monticello, IL, United States Duration: 24 Sept 2008 → 26 Sept 2008

Other

Other	46th Annual Allerton Conference on Communication, Control, and Computing
Country/Territory	United States
City	Monticello, IL
Period	24/09/08 → 26/09/08

Access to Document

10.1109/ALLERTON.2008.4797634

Cite this

Jose, J., Ashikhmin, A., Whiting, P., & Sri Vishwanath, R. (2008). Precoding methods for multi-user tdd MIMO systems. In 46th Annual Allerton Conference on Communication, Control, and Computing: proceedings: 24-26 September 2008, Monticello, IL (pp. 761-767). [4797634] Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ALLERTON.2008.4797634

@inproceedings{c0ec5065c6644e13995d61b78d50518d,

title = "Precoding methods for multi-user tdd MIMO systems",

abstract = "We present linear precoding methods for down-link transmission in multi-user multiple-input multiple-output (MIMO) systems where channel state information (CSI) can be obtained through training. In this paper, channel training overhead and estimation error are rigorously accounted for while determining the net system throughput. First, we consider the case with training on the reverse link only. We study a precoding method which is a combination of two schemes: selection of users with largest estimated gains and zero-forcing to selected users. Next, we consider the case with training on both reverse and forward links. We obtain a lower bound on the weighted-sum capacity, and propose an algorithm to determine an efficient precoding matrix. This precoding method effectively utilizes the training on the reverse and forward links in improving net throughput.",

author = "Jubin Jose and Alexei Ashikhmin and Phil Whiting and {Sri Vishwanath}, Ram",

year = "2008",

doi = "10.1109/ALLERTON.2008.4797634",

language = "English",

isbn = "9781424429264",

pages = "761--767",

booktitle = "46th Annual Allerton Conference on Communication, Control, and Computing",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "46th Annual Allerton Conference on Communication, Control, and Computing ; Conference date: 24-09-2008 Through 26-09-2008",

}

Jose, J, Ashikhmin, A, Whiting, P & Sri Vishwanath, R 2008, Precoding methods for multi-user tdd MIMO systems. in 46th Annual Allerton Conference on Communication, Control, and Computing: proceedings: 24-26 September 2008, Monticello, IL., 4797634, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 761-767, 46th Annual Allerton Conference on Communication, Control, and Computing, Monticello, IL, United States, 24/09/08. https://doi.org/10.1109/ALLERTON.2008.4797634

Precoding methods for multi-user tdd MIMO systems. / Jose, Jubin; Ashikhmin, Alexei; Whiting, Phil et al.
46th Annual Allerton Conference on Communication, Control, and Computing: proceedings: 24-26 September 2008, Monticello, IL. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2008. p. 761-767 4797634.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Precoding methods for multi-user tdd MIMO systems

AU - Jose, Jubin

AU - Ashikhmin, Alexei

AU - Whiting, Phil

AU - Sri Vishwanath, Ram

PY - 2008

Y1 - 2008

N2 - We present linear precoding methods for down-link transmission in multi-user multiple-input multiple-output (MIMO) systems where channel state information (CSI) can be obtained through training. In this paper, channel training overhead and estimation error are rigorously accounted for while determining the net system throughput. First, we consider the case with training on the reverse link only. We study a precoding method which is a combination of two schemes: selection of users with largest estimated gains and zero-forcing to selected users. Next, we consider the case with training on both reverse and forward links. We obtain a lower bound on the weighted-sum capacity, and propose an algorithm to determine an efficient precoding matrix. This precoding method effectively utilizes the training on the reverse and forward links in improving net throughput.

AB - We present linear precoding methods for down-link transmission in multi-user multiple-input multiple-output (MIMO) systems where channel state information (CSI) can be obtained through training. In this paper, channel training overhead and estimation error are rigorously accounted for while determining the net system throughput. First, we consider the case with training on the reverse link only. We study a precoding method which is a combination of two schemes: selection of users with largest estimated gains and zero-forcing to selected users. Next, we consider the case with training on both reverse and forward links. We obtain a lower bound on the weighted-sum capacity, and propose an algorithm to determine an efficient precoding matrix. This precoding method effectively utilizes the training on the reverse and forward links in improving net throughput.

UR - http://www.scopus.com/inward/record.url?scp=64549148899&partnerID=8YFLogxK

U2 - 10.1109/ALLERTON.2008.4797634

DO - 10.1109/ALLERTON.2008.4797634

M3 - Conference proceeding contribution

AN - SCOPUS:64549148899

SN - 9781424429264

SP - 761

EP - 767

BT - 46th Annual Allerton Conference on Communication, Control, and Computing

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 46th Annual Allerton Conference on Communication, Control, and Computing

Y2 - 24 September 2008 through 26 September 2008

ER -

Precoding methods for multi-user tdd MIMO systems

Abstract

Other

Access to Document

Other files and links

Fingerprint

Cite this