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Angle-of-Departure-Aided Opportunistic Space-Division Multiple Access

Dahman, Ghassan LU and Hafez, Roshdy (2009) Communication Networks and Services Research Conference, 2009. CNSR '09. Seventh Annual In [Host publication title missing] p.146-152
Abstract
In this paper, a novel transmission technique for the multiple-input multiple-output (MIMO) broadcasting directional channels is introduced. During the training period, the base station sends a set of mutually orthogonal signals which enables each user to estimate the angle-of-departure of the anticipated strongest beam and the corresponding SNR. Then, the base station uses the reported angles-of-departure and SNRs to select a subgroup of users for data transmission in such a way that the sum capacity is maximized. Compared to the opportunistic space-division multiple access with beam selection algorithm, the advantage of the proposed algorithm is that it provides throughput gains up to 95% with low to medium number of users, under the... (More)
In this paper, a novel transmission technique for the multiple-input multiple-output (MIMO) broadcasting directional channels is introduced. During the training period, the base station sends a set of mutually orthogonal signals which enables each user to estimate the angle-of-departure of the anticipated strongest beam and the corresponding SNR. Then, the base station uses the reported angles-of-departure and SNRs to select a subgroup of users for data transmission in such a way that the sum capacity is maximized. Compared to the opportunistic space-division multiple access with beam selection algorithm, the advantage of the proposed algorithm is that it provides throughput gains up to 95% with low to medium number of users, under the same number of feedback bits. In addition to our new proposed algorithm, we introduce a modified version of the opportunistic space-division multiple access with beam selection algorithm, which shows a significant throughput improvement when evaluated using directional channel models such as WINNER. (Less)
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author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Angle-of-departure (AOD) estimation, beamforming, space-division multiple access (SDMA).
in
[Host publication title missing]
pages
7 pages
conference name
Communication Networks and Services Research Conference, 2009. CNSR '09. Seventh Annual
external identifiers
  • Scopus:67650333078
ISBN
978-0-7695-3649-1
language
English
LU publication?
no
id
14129334-6f31-4129-a037-a9890f8cb16e (old id 4091462)
date added to LUP
2013-10-14 12:32:55
date last changed
2017-01-01 08:13:58
@inproceedings{14129334-6f31-4129-a037-a9890f8cb16e,
  abstract     = {In this paper, a novel transmission technique for the multiple-input multiple-output (MIMO) broadcasting directional channels is introduced. During the training period, the base station sends a set of mutually orthogonal signals which enables each user to estimate the angle-of-departure of the anticipated strongest beam and the corresponding SNR. Then, the base station uses the reported angles-of-departure and SNRs to select a subgroup of users for data transmission in such a way that the sum capacity is maximized. Compared to the opportunistic space-division multiple access with beam selection algorithm, the advantage of the proposed algorithm is that it provides throughput gains up to 95% with low to medium number of users, under the same number of feedback bits. In addition to our new proposed algorithm, we introduce a modified version of the opportunistic space-division multiple access with beam selection algorithm, which shows a significant throughput improvement when evaluated using directional channel models such as WINNER.},
  author       = {Dahman, Ghassan and Hafez, Roshdy},
  booktitle    = {[Host publication title missing]},
  isbn         = {978-0-7695-3649-1},
  keyword      = {Angle-of-departure (AOD) estimation,beamforming,space-division multiple access (SDMA).},
  language     = {eng},
  pages        = {146--152},
  title        = {Angle-of-Departure-Aided Opportunistic Space-Division Multiple Access},
  year         = {2009},
}