Loading...
Please wait, while we are loading the content...
Similar Documents
Outage-Optimal Cooperative Relaying
| Content Provider | CiteSeerX |
|---|---|
| Author | Avestimehr, A. Salman Tse, David N. C. |
| Abstract | Abstract — In this paper we look at the outage capacity of the fading relay channel with half-duplex constraint in the low SNR regime. When the channel state information (CSI) is available only at the receiver it was shown that a Bursty Amplify-Forward (BAF) protocol is optimal and achieves the max-flow min-cut upper bound on the outage capacity of this network [11]. But as the channel estimation is quite challenging in the low SNR regime in this paper we focus on the scenario that neither the transmitter nor the receiver know the channel state (non coherent). We show that the outage capacity in this scenario is the same as before, hence the receiver does not need to estimate the channel to get the same rate as before. We also investigate another extreme that the channel state information is available at both the transmitter and the receiver (full CSI). We show that this additional information will just slightly increase the outage capacity while the communication protocol gets quite complicated. I. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Low Snr Regime Fading Relay Channel Channel State Information Communication Protocol Bursty Amplify-forward Non Coherent Full Csi Additional Information Outage Capacity Channel Estimation Half-duplex Constraint Channel State Outage-optimal Cooperative Relaying Max-flow Min-cut Upper Bound |
| Content Type | Text |
| Resource Type | Article |
