Multi-beam assisted MIMO - A novel approach to fixed beamforming

Agisilaos Papadogiannis; Alister G. Burr

Multi-beam assisted MIMO - A novel approach to fixed beamforming

Agisilaos Papadogiannis^*, Alister G. Burr

^*Corresponding author for this work

Electronic Engineering

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

Abstract

Fourth-generation (4G) wireless networks promise the provision of unprecedented data rates. However apart from achieving a very high headline rate, it is also critical that future systems provide the capacity density of at least 1 Gbit/s/km ² that is expected to be in demand. A promising solution that can provide the needed capacity density uses a large number of narrow beams at the base station with the aid of a Butler matrix. This fixed beamforming approach needs to be enhanced in order to provide the required capacity density as user throughput suffers from inter-beam interference because users are not likely to be located at the boresight of beams. For this purpose we propose that multiple-input multiple-output (MIMO) techniques are applied in the beam domain, resulting in a concept we may describe as multi-beam assisted MIMO (MBA-MIMO). This is shown to effectively mitigate interference and enable the provision of the required capacity density. Therefore MBA-MIMO is an attractive technology that can play a prominent role in future wireless networks beyond 4G.

Original language	English
Title of host publication	2011 Future Network and Mobile Summit, FutureNetw 2011
Publication status	Published - 2011
Event	2011 Future Network and Mobile Summit, FutureNetw 2011 - Warsaw, Poland Duration: 15 Jun 2011 → 17 Jun 2011

Publication series

Name	2011 Future Network and Mobile Summit, FutureNetw 2011

Conference

Conference	2011 Future Network and Mobile Summit, FutureNetw 2011
Country/Territory	Poland
City	Warsaw
Period	15/06/11 → 17/06/11

Keywords

Butler matrix (BM)
capacity density
Fixed beamforming
multi-beam assisted multiple-input multiple output (MBA-MIMO)
truncated Shannon bound (TSB)

Cite this

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title = "Multi-beam assisted MIMO - A novel approach to fixed beamforming",

abstract = "Fourth-generation (4G) wireless networks promise the provision of unprecedented data rates. However apart from achieving a very high headline rate, it is also critical that future systems provide the capacity density of at least 1 Gbit/s/km 2 that is expected to be in demand. A promising solution that can provide the needed capacity density uses a large number of narrow beams at the base station with the aid of a Butler matrix. This fixed beamforming approach needs to be enhanced in order to provide the required capacity density as user throughput suffers from inter-beam interference because users are not likely to be located at the boresight of beams. For this purpose we propose that multiple-input multiple-output (MIMO) techniques are applied in the beam domain, resulting in a concept we may describe as multi-beam assisted MIMO (MBA-MIMO). This is shown to effectively mitigate interference and enable the provision of the required capacity density. Therefore MBA-MIMO is an attractive technology that can play a prominent role in future wireless networks beyond 4G.",

keywords = "Butler matrix (BM), capacity density, Fixed beamforming, multi-beam assisted multiple-input multiple output (MBA-MIMO), truncated Shannon bound (TSB)",

author = "Agisilaos Papadogiannis and Burr, {Alister G.}",

year = "2011",

language = "English",

isbn = "9781905824250",

series = "2011 Future Network and Mobile Summit, FutureNetw 2011",

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note = "2011 Future Network and Mobile Summit, FutureNetw 2011 ; Conference date: 15-06-2011 Through 17-06-2011",

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AU - Papadogiannis, Agisilaos

AU - Burr, Alister G.

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N2 - Fourth-generation (4G) wireless networks promise the provision of unprecedented data rates. However apart from achieving a very high headline rate, it is also critical that future systems provide the capacity density of at least 1 Gbit/s/km 2 that is expected to be in demand. A promising solution that can provide the needed capacity density uses a large number of narrow beams at the base station with the aid of a Butler matrix. This fixed beamforming approach needs to be enhanced in order to provide the required capacity density as user throughput suffers from inter-beam interference because users are not likely to be located at the boresight of beams. For this purpose we propose that multiple-input multiple-output (MIMO) techniques are applied in the beam domain, resulting in a concept we may describe as multi-beam assisted MIMO (MBA-MIMO). This is shown to effectively mitigate interference and enable the provision of the required capacity density. Therefore MBA-MIMO is an attractive technology that can play a prominent role in future wireless networks beyond 4G.

AB - Fourth-generation (4G) wireless networks promise the provision of unprecedented data rates. However apart from achieving a very high headline rate, it is also critical that future systems provide the capacity density of at least 1 Gbit/s/km 2 that is expected to be in demand. A promising solution that can provide the needed capacity density uses a large number of narrow beams at the base station with the aid of a Butler matrix. This fixed beamforming approach needs to be enhanced in order to provide the required capacity density as user throughput suffers from inter-beam interference because users are not likely to be located at the boresight of beams. For this purpose we propose that multiple-input multiple-output (MIMO) techniques are applied in the beam domain, resulting in a concept we may describe as multi-beam assisted MIMO (MBA-MIMO). This is shown to effectively mitigate interference and enable the provision of the required capacity density. Therefore MBA-MIMO is an attractive technology that can play a prominent role in future wireless networks beyond 4G.

KW - Butler matrix (BM)

KW - capacity density

KW - Fixed beamforming

KW - multi-beam assisted multiple-input multiple output (MBA-MIMO)

KW - truncated Shannon bound (TSB)

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M3 - Conference contribution

AN - SCOPUS:84255161992

SN - 9781905824250

T3 - 2011 Future Network and Mobile Summit, FutureNetw 2011

BT - 2011 Future Network and Mobile Summit, FutureNetw 2011

T2 - 2011 Future Network and Mobile Summit, FutureNetw 2011

Y2 - 15 June 2011 through 17 June 2011

ER -

Multi-beam assisted MIMO - A novel approach to fixed beamforming

Abstract

Publication series

Conference

Keywords

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Cite this