Capacity analysis of the successive AF relaying aided cooperative DS-CDMA uplink
Li, Li, Wang, Li and Hanzo, Lajos (2012) Capacity analysis of the successive AF relaying aided cooperative DS-CDMA uplink. In, 2012 IEEE Wireless Communications and Networking Conference: Mobile and Wireless Networks (WCNC2012), Paris, FR, 01 - 04 Apr 2012. New York, US, Institute of Electrical and Electronics Engineers6pp. (doi:10.1109/TVT.2012.2227855).
An amplify-and-forward (AF) based successive relaying aided network (SRAN) is designed for a multi-user spread-spectrum scenario conceived for noncoherent (NC) detection in order to convert the typical 50% half-duplex relaying-induced throughput loss to a potential user-load reduction of the CDMA system, where the NC detector allows us to avoid the extra power consumption imposed by channel estimation. With the same “green agenda” in mind, we limit the extra complexity imposed on the relay node (RN) by invoking the AF, rather than the more complex decode-andforward protocol. We theoretically characterize the proposed AF based SRAN in the context of the DS-CDMA uplink by evaluating its noncoherent Discrete-input Continuous-output Memoryless Channel (DCMC) capacity. We demonstrate that the cooperative DS-CDMA uplink achieves a higher capacity gain with respect to its conventional direct transmission based counterpart, when the system has to support a high number of DS-CDMA users.
|Item Type:||Conference or Workshop Item (Paper)|
|Digital Object Identifier (DOI):||doi:10.1109/TVT.2012.2227855|
|Divisions:||Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Southampton Wireless Group
|Date Deposited:||12 Apr 2012 10:21|
|Last Modified:||02 Apr 2014 09:55|
India-UK Advanced Technology Centre (IU-ATC) in Next Generation Networks Systems and Services (Phase Two Follow-on)
Funded by: EPSRC (EP/J016748/1)
Led by: Gerard Parr
1 January 2012 to 30 June 2014
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