A simple detect-and-forward scheme in fading channels
IEEE Communications Letters
Quantifying the loss of compress-forward relaying without Wyner-Ziv coding
IEEE Transactions on Information Theory
On the diversity gain of AF and DF relaying with noisy CSI at the source transmitter
IEEE Transactions on Information Theory
Quantization of channel state information for detect-and-forward relaying schemes
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Outage reduction in cooperative networks with limited feedback
IEEE Transactions on Communications
On the diversity gain in cooperative relaying channels with imperfect CSIT
IEEE Transactions on Communications
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Detect-and-forward in two-hop relay channels: a metrics-based analysis
IEEE Transactions on Communications
On the DMT-optimality of nondynamic DF relaying in asymmetric Nakagami fading channels
IEEE Transactions on Information Theory
Compress-forward relaying with quantized channel state feedback
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Approaching the optimal diversity-multiplexing tradeoff in a four-node cooperative network
IEEE Transactions on Wireless Communications
Superposition Coding and Analysis for Cooperative Multiple Access Relay System
Wireless Personal Communications: An International Journal
| Hi-index | 755.02 |
The problem of resource allocation to maximize the outage exponent over a fading relay channel using the decode-and-forward protocol with quantized channel state feedback (CSF) is studied. Three different scenarios are considered: relay-to-source, destination-to-relay, and destination-to-source-and-relay CSF. In the relay-to-source CSF scenario, it is found that using merely one bit of CSF to control the source transmit power is sufficient to achieve the multiantenna upper bound in a range of multiplexing gains. In the destination-to-relay CSF scenario, the systems slightly outperform dynamic decode-and-forward (DDF) at high multiplexing gains, even with only one bit of feedback. Finally, in the destination-to-source-and-relay CSF scenario, if the source-relay channel gain is unknown to the feedback quantizer at the destination, the diversity gain only grows linearly in the number of feedback levels, in sharp contrast to an exponential growth for multiantenna channels. In this last scenario, a simple scheme is shown to perform close to the corresponding upper bound.