Cooperative Communications and Networking
Cooperative Communications and Networking
IEEE 802.16J relay-based wireless access networks: an overview
IEEE Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Relay-Assisted Decorrelating Multiuser Detector (RAD-MUD) for Cooperative CDMA Networks
IEEE Journal on Selected Areas in Communications
Relay-assisted partial packet recovery with IDMA method in CDMA wireless network
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
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Cooperative communication schemes can provide diversity gain. However, when the network model is compose of multiple source-destination pairs with multiple common relays, interference problems arise. In this paper, we propose a cooperative transmission scheme based on Interleave-division multiple-access (IDMA) with decode-and-forward (DF) and amplify-and-forward (AF) protocols so that destinations can cancel the interference and achieve diversity gain. The simulations show diversity gains of at least 8dB when cooperative communication has been implemented with IDMA over DF and AF protocols. We also provide an insight to how power allocation between sources and relays would affect the performance. It reveals that relay nodes can be adaptive to select DF or AF protocol based on the constraints of power allocation and the locations of relays.