Asymmetrical Modulation for Uplink Communication in Cooperative Networks

Qi Zhang; Frank H.P. Fitzek; Villy Bæk Iversen

doi:10.1109/ICCW.2008.21

Asymmetrical Modulation for Uplink Communication in Cooperative Networks

Qi Zhang, Frank H.P. Fitzek, Villy Bæk Iversen

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Abstract

In this paper a spectrum efficient uplink communication method for cooperative wireless networks is presented. In cellular controlled peer to peer (CCP2P) cooperative wireless networks the mobile device is logically connected over cellular links with the base station and simultaneously over short-range links with neighboring mobile devices to form cooperative clusters. So far the physical communication over cellular links and over short-range links are separated in time or in frequency. Beyond this state of the art, we exploit a method, referred to as asymmetrical modulation, where a mobile device is generating signals that are conveyed towards the base station and the neighboring devices in the same frequency and even at the same time. The signal is composed in such a way that it has different meanings for the neighboring devices than the base station. While the base station is getting the coarse information, the neighboring devices are getting the fine grained information reading between the lines. Our analytical analysis and simulation results show that asymmetrical modulation can improve the spectrum efficiency and reduce the data queuing delay with neither degrading the symbol error rate performance nor increasing the average energy per bit.

Original language	English
Title of host publication	Proceeding of ICC workshops
Publisher	IEEE
Publication date	2008
Pages	85-90
ISBN (Print)	14-24-42051-3
DOIs	https://doi.org/10.1109/ICCW.2008.21
Publication status	Published - 2008
Event	2008 IEEE International Conference on Communications Workshops - Beijing, China Duration: 19 May 2008 → 23 May 2008

Workshop

Workshop	2008 IEEE International Conference on Communications Workshops
Country/Territory	China
City	Beijing
Period	19/05/2008 → 23/05/2008

Bibliographical note

Copyright: 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

Keywords

cooperation networks
Asymmetrical modulation

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title = "Asymmetrical Modulation for Uplink Communication in Cooperative Networks",

abstract = "In this paper a spectrum efficient uplink communication method for cooperative wireless networks is presented. In cellular controlled peer to peer (CCP2P) cooperative wireless networks the mobile device is logically connected over cellular links with the base station and simultaneously over short-range links with neighboring mobile devices to form cooperative clusters. So far the physical communication over cellular links and over short-range links are separated in time or in frequency. Beyond this state of the art, we exploit a method, referred to as asymmetrical modulation, where a mobile device is generating signals that are conveyed towards the base station and the neighboring devices in the same frequency and even at the same time. The signal is composed in such a way that it has different meanings for the neighboring devices than the base station. While the base station is getting the coarse information, the neighboring devices are getting the fine grained information reading between the lines. Our analytical analysis and simulation results show that asymmetrical modulation can improve the spectrum efficiency and reduce the data queuing delay with neither degrading the symbol error rate performance nor increasing the average energy per bit.",

keywords = "cooperation networks, Asymmetrical modulation",

author = "Qi Zhang and Fitzek, {Frank H.P.} and Iversen, {Villy B{\ae}k}",

note = "Copyright: 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 2008 IEEE International Conference on Communications Workshops, ICC 2008 ; Conference date: 19-05-2008 Through 23-05-2008",

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AU - Iversen, Villy Bæk

N1 - Copyright: 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 2008

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N2 - In this paper a spectrum efficient uplink communication method for cooperative wireless networks is presented. In cellular controlled peer to peer (CCP2P) cooperative wireless networks the mobile device is logically connected over cellular links with the base station and simultaneously over short-range links with neighboring mobile devices to form cooperative clusters. So far the physical communication over cellular links and over short-range links are separated in time or in frequency. Beyond this state of the art, we exploit a method, referred to as asymmetrical modulation, where a mobile device is generating signals that are conveyed towards the base station and the neighboring devices in the same frequency and even at the same time. The signal is composed in such a way that it has different meanings for the neighboring devices than the base station. While the base station is getting the coarse information, the neighboring devices are getting the fine grained information reading between the lines. Our analytical analysis and simulation results show that asymmetrical modulation can improve the spectrum efficiency and reduce the data queuing delay with neither degrading the symbol error rate performance nor increasing the average energy per bit.

AB - In this paper a spectrum efficient uplink communication method for cooperative wireless networks is presented. In cellular controlled peer to peer (CCP2P) cooperative wireless networks the mobile device is logically connected over cellular links with the base station and simultaneously over short-range links with neighboring mobile devices to form cooperative clusters. So far the physical communication over cellular links and over short-range links are separated in time or in frequency. Beyond this state of the art, we exploit a method, referred to as asymmetrical modulation, where a mobile device is generating signals that are conveyed towards the base station and the neighboring devices in the same frequency and even at the same time. The signal is composed in such a way that it has different meanings for the neighboring devices than the base station. While the base station is getting the coarse information, the neighboring devices are getting the fine grained information reading between the lines. Our analytical analysis and simulation results show that asymmetrical modulation can improve the spectrum efficiency and reduce the data queuing delay with neither degrading the symbol error rate performance nor increasing the average energy per bit.

KW - cooperation networks

KW - Asymmetrical modulation

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M3 - Article in proceedings

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BT - Proceeding of ICC workshops

PB - IEEE

T2 - 2008 IEEE International Conference on Communications Workshops

Y2 - 19 May 2008 through 23 May 2008

ER -

Asymmetrical Modulation for Uplink Communication in Cooperative Networks

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Keywords

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