The Resource-Optimized Differentially Modulated Hybrid AF/DF Cooperative Cellular Uplink Using Multiple-Symbol Differential Sphere Detection
Authors:
- 14 July 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Signal Processing Letters
- Vol. 16 (11) , 965-968
Abstract
In multiuser cellular uplinks, cooperating mobiles may share their antennas in order to achieve transmit diversity by forming a virtual antenna array (VAA) in a distributed fashion. In this paper, based on the minimum BER criterion, we investigate cooperating-user-selection (CUS) and adaptive-power-allocation (APA) for two types of differentially modulated cooperative cellular uplinks requiring no channel state information (CSI) at the receiver, namely, for the differential-amplify-and-forward (DAF) and the selective differential-decode-and-forward (DDF) assisted systems. They both employ multiple-symbol differential sphere detection (MSDSD) to combat rapid-fading-induced performance degradation. More specifically, we investigate the cooperative-protocol-selection (CPS) of the uplink system in conjunction with a beneficial CUS as well as the APA scheme in order to further improve the achievable end-to-end performance, leading to a resource-optimized hybrid AF/DF cooperative system.Keywords
This publication has 9 references indexed in Scilit:
- Cooperative communications protocol for multiuser OFDM networksIEEE Transactions on Wireless Communications, 2008
- Differential Modulations for Multinode Cooperative CommunicationsIEEE Transactions on Signal Processing, 2008
- Outage analysis and optimal power allocation for multinode relay networksIEEE Signal Processing Letters, 2007
- Multiple-Symbol Differential Sphere DecodingIEEE Transactions on Communications, 2005
- Differential transmission for amplify-and-forward Cooperative communicationsIEEE Signal Processing Letters, 2005
- A Closed-Form Expression for the Symbol-Error Rate of$M$-ary DPSK in Fast Rayleigh FadingIEEE Transactions on Communications, 2005
- Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage BehaviorIEEE Transactions on Information Theory, 2004
- A unified approach to the probability of error for noncoherent and differentially coherent modulations over generalized fading channelsIEEE Transactions on Communications, 1998
- On Limits of Wireless Communications in a Fading Environment when Using Multiple AntennasWireless Personal Communications, 1998