Title :
Capacity Analysis of Two-Hop Multichannel Relaying With Subchannel Pairing
Author :
Dong Qin ; Yan Wang
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
This letter analyses capacity of a multichannel relay system with subchannel pairing (SP) over Rayleigh fading channels. We aim to derive unified capacity expressions for three SP cases, i.e., ordered subchannel pairing (OSP), reversely ordered subchannel pairing (ROSP) and non-subchannel pairing (NSP). In particular, we quantify higher-order statistics of the capacity in decode-and-forward (DF) protocol associated with three power allocation schemes: uniform power allocation, water-filling power assignment and power adaptation with truncated channel inversion policy. While in amplify-and-forward (AF) protocol, we only concern the ergodic capacity for uniform power allocation due to mathematical tractability. Finally, theoretical formulas well coincide with simulation results.
Keywords :
Rayleigh channels; amplify and forward communication; channel capacity; decode and forward communication; protocols; relay networks (telecommunication); statistics; Rayleigh fading channels; amplify-and-forward protocol; capacity analysis; decode-and-forward protocol; higher-order statistics; multichannel relay system; non-subchannel pairing; power adaptation; power allocation; reversely ordered subchannel pairing; two-hop multichannel relaying; water-filling power assignment; Fading; Higher order statistics; Protocols; Relays; Resource management; Signal to noise ratio; Simulation; Multichannel relaying; Rayleigh fading; multichannel relaying; subchannel pairing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2458314
