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Single ODSB radio-over-fiber signal supports STBC at each RAP

Single ODSB radio-over-fiber signal supports STBC at each RAP
Single ODSB radio-over-fiber signal supports STBC at each RAP
We propose and mathematically characterize a novel radio-over-fiber (ROF) downlink, where a radio access point (RAP) benefits from the transmit diversity gain of space-time block coding (STBC). Significantly, this transmit diversity is achieved using a single optical modulator in the base station (BS). In the proposed architecture, each RAP is fed with a single optical double-sideband signal, where each sideband transmits one of the two STBC-encoded signals. This optical signal is generated in the BS by performing the simultaneous optical upconversion of the baseband STBC signals using a single Mach-Zehnder modulator. The proposed optical backhaul is designed and simulated to impose negligible degradation to that imposed by the dominant wireless link, thereby enabling a designer to exploit the advantages offered by a wireless link having a diversity gain.
1331-1334
Thomas, Varghese
01b424f8-b059-4d26-89f3-4823a9c470f3
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Thomas, Varghese
01b424f8-b059-4d26-89f3-4823a9c470f3
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Thomas, Varghese, El-Hajjar, Mohammed and Hanzo, Lajos (2015) Single ODSB radio-over-fiber signal supports STBC at each RAP IEEE Communications Letters, pp. 1331-1334.

Record type: Article

Abstract

We propose and mathematically characterize a novel radio-over-fiber (ROF) downlink, where a radio access point (RAP) benefits from the transmit diversity gain of space-time block coding (STBC). Significantly, this transmit diversity is achieved using a single optical modulator in the base station (BS). In the proposed architecture, each RAP is fed with a single optical double-sideband signal, where each sideband transmits one of the two STBC-encoded signals. This optical signal is generated in the BS by performing the simultaneous optical upconversion of the baseband STBC signals using a single Mach-Zehnder modulator. The proposed optical backhaul is designed and simulated to impose negligible degradation to that imposed by the dominant wireless link, thereby enabling a designer to exploit the advantages offered by a wireless link having a diversity gain.

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Published date: 4 May 2015

Identifiers

Local EPrints ID: 381882
URI: http://eprints.soton.ac.uk/id/eprint/381882
PURE UUID: 45a43f1e-ba50-4b54-b444-f12e441ef80d
ORCID for Mohammed El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 14 Oct 2015 14:21
Last modified: 11 Nov 2017 05:47

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Contributors

Author: Varghese Thomas
Author: Mohammed El-Hajjar ORCID iD
Author: Lajos Hanzo ORCID iD

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