In this paper,we exploit the cooperative spectrum sensing with DF diversity protocol between two secondary users,and make a comparison with AF protocol in terms of detection probability and outage probability.

Channel estimation method for multi-node amplify-and-forward co-operative communication over frequency-selective fading channels;

Performance of fountain codes based amplify-and-forward cooperative communication systems

In order to avoid the resource inefficiency of all-participated cooperations in amplify-and-forward cooperative communication networks,a new relay selection scheme is proposed.

Adaptive bit and power allocation is introduced in two hop orthogonal frequency division multiplexing-amplify and forward(OFDM-AF) relaying systems.

In the stateless geographic forwarding protocols,a sender s next-hop forwarder is selected based on the contention of all the suitable candidates at current time.