## Abstract

We start with a direct transmission link as depicted in Figure 2.1(a) and assume the channel model incorporating path-loss and Rayleigh fading. The received signal at the destination d is modeled as y_{d}[n] = a_{s, d}x_{s}[n] + n_{d}[n], (2.1) where x_{s}[n] is the signal transmitted by a source s, n ∈ [1, …, N ] is the index of the transmitting packet, and n_{d}[n] is additive white Gaussian noise, with variance σ^{2} _{n}, at the receiver. The channel gain a_{s, d} between the nodes s and d is modeled as a_{s, d} = h_{s, d}/d^{α/2} _{s, d}, where d_{s, d} is the distance between the nodes s and d, α is the path-loss exponent, and h_{s, d} captures the channel fading characteristics. The channel fading parameter h_{s, d} is assumed to be complex Gaussian with zero mean and unit variance, and independent and identically distributed (i.i.d.) across times slots, packets, and links.

Original language | British English |
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Title of host publication | Energy Efficient Cooperative Wireless Communication and Networks |

Pages | 9-24 |

Number of pages | 16 |

ISBN (Electronic) | 9781482238228 |

DOIs | |

State | Published - 1 Jan 2014 |