Chapter 10 Cooperation Link Level Retransmission in Wireless Networks M. Dianati, X. Shen, and K. Naik. Scope. Link and MAC layer for fading channels. Two parts: Cooperative Scheduling Cooperative ARQ. Introduction. Sample fading process. Challenges in wireless domain: Fading
Sample fading process
Power spectrum density
Complex envelope of
Power spectrum density:
Fading process is a non-white stochastic process with relatively slow variations.
1. It has correctly received the previously transmitted frame
2. Its channel to the receiver node is in good condition.
O(k): Status of the protocol at discrete time k
P(k): Status of the primary channel
N(k): Status of the super node
G: Good state
B: Bad state
C: Cooperative state
NC: Non Cooperative state
Normalized inverse fading margin: