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On the MIMO Channel Capacity of Multi-Dimensional Signal Sets

On the MIMO Channel Capacity of Multi-Dimensional Signal Sets
On the MIMO Channel Capacity of Multi-Dimensional Signal Sets
In this contribution we evaluate the capacity of Multi-Input Multi-Output (MIMO) systems using multi-dimensional PSK/QAM signal sets. It was shown that transmit diversity is capable of narrowing the gap between the capacity of the Rayleigh-fading channel and the AWGN channel. However, since this gap becomes narrower when the receiver diversity order is increased, for higher-order receiver diversity the performance advantage of transmit diversity diminishes. A MIMO system having full multiplexing gain has a higher achievable throughput than the corresponding MIMO system designed for full diversity gain, although this is attained at the cost of a higher complexity and a higher SNR. The tradeoffs between diversity gain, multiplexing gain, complexity and bandwidth are studied.
Capacity, diversity, MIMO, multiplexing, multi-dimensional signal set
0018-9545
528-536
Ng, S. X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Heath, R.
25cb0e00-c8be-4009-9482-91f50945a74f
Ng, S. X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Heath, R.
25cb0e00-c8be-4009-9482-91f50945a74f

Ng, S. X. and Hanzo, L., Heath, R.(ed.) (2006) On the MIMO Channel Capacity of Multi-Dimensional Signal Sets IEEE Transactions on Vehicular Technology, 55, (2), pp. 528-536.

Record type: Article

Abstract

In this contribution we evaluate the capacity of Multi-Input Multi-Output (MIMO) systems using multi-dimensional PSK/QAM signal sets. It was shown that transmit diversity is capable of narrowing the gap between the capacity of the Rayleigh-fading channel and the AWGN channel. However, since this gap becomes narrower when the receiver diversity order is increased, for higher-order receiver diversity the performance advantage of transmit diversity diminishes. A MIMO system having full multiplexing gain has a higher achievable throughput than the corresponding MIMO system designed for full diversity gain, although this is attained at the cost of a higher complexity and a higher SNR. The tradeoffs between diversity gain, multiplexing gain, complexity and bandwidth are studied.

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Published date: March 2006
Keywords: Capacity, diversity, MIMO, multiplexing, multi-dimensional signal set
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 262104
URI: http://eprints.soton.ac.uk/id/eprint/262104
ISSN: 0018-9545
PURE UUID: 863c7c90-c0bb-4fa5-9d0f-a063103f8685
ORCID for S. X. Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 22 Mar 2006
Last modified: 18 Jul 2017 08:54

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Contributors

Author: S. X. Ng ORCID iD
Author: L. Hanzo ORCID iD
Editor: R. Heath

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