From: Improving cellular downlink throughput by multi-hop relay-assisted outband D2D communications
Description | Parameter | Value |
---|---|---|
Transmitting antenna gain | G t | 1 |
Receiving antenna gain | G r | 1 |
Transmitting antenna height | h t | 1Â m |
Receiving antenna height | h r | 1Â m |
Transmitting power for UE | p ue | 0.1w |
Transmitting power for eNB | p c | 10w |
BER threshold for UE | BE th | 10−10 |
Environment noise power for UE | N i | For any UEi, 2 × 10−11 |
Carrier signal wavelength | λ | 0.1224 m |
System loss factor | L | 1 |
Crossover distance | d crossover | 103Â m |
Path loss exponent | α ji | For any link j→i, α ji  = 2 when d ji  < d crossover ; α ji  = 4 when d ji  ≥ d crossover |
Initial battery capacity | e i,int | For any UEi, e i,int is randomly distributed between 0.05Â J and 0.2Â J |
Transmitter electronics energy | φ 11 | 26.5 nJ/bit |
Receiver electronics energy | φ 12 | 59.1 nJ/bit |
Radio amplifier energy | φ 2 | For any link j→i, 10 pJ/bit/m2when α ji  = 2; 0.0013 pJ/bit/m4when α ji  = 4 |
Packet forwarding capacity | t b i | For any UEi, t b i is 100Â ns/bit |
Data packet length | M | 2500 bit |