Throughput maximization for buffer-aided hybrid half-/full-duplex relaying with self-interference

Khafagy, Mohammad Galal; El Shafie, Ahmed; Salem, Ahmed Sultan; Alouini, Mohamed-Slim

Throughput maximization for buffer-aided hybrid half-/full-duplex relaying with self-interference

Files

201506_ICC_Buffered.pdf (408.47 KB)

Type

Conference Paper

Authors

Khafagy, Mohammad Galal

El Shafie, Ahmed

Salem, Ahmed Sultan
Alouini, Mohamed-Slim

KAUST Department

Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program

Date

2015-06

Abstract

In this work, we consider a two-hop cooperative setting where a source communicates with a destination through an intermediate relay node with a buffer. Unlike the existing body of work on buffer-aided half-duplex relaying, we consider a hybrid half-/full-duplex relaying scenario with loopback interference in the full-duplex mode. Depending on the channel outage and buffer states that are assumed available at the transmitters, the source and relay may either transmit simultaneously or revert to orthogonal transmission. Specifically, a joint source/relay scheduling and relaying mode selection mechanism is proposed to maximize the end-to-end throughput. The throughput maximization problem is converted to a linear program where the exact global optimal solution is efficiently obtained via standard convex/linear numerical optimization tools. Finally, the theoretical findings are corroborated with event-based simulations to provide the necessary performance validation.

Citation

Khafagy, M. G., Shafie, A. E., Sultan, A., & Alouini, M.-S. (2015). Throughput maximization for buffer-aided hybrid half-/full-duplex relaying with self-interference. 2015 IEEE International Conference on Communications (ICC). doi:10.1109/icc.2015.7248607