One of the key technologies in next generation systems for achieving high throughput and providing better coverage is relaying. Relaying has attracted a high level of recent research interest with several papers focusing on various aspects of communicating using relays with different constraints and assumptions. In this work, we are concerned with the capacity of multistage relaying from one source to one destination through an arbitrary network of half duplex relays. © 2010 IEEE.

Srikrishna Bhashyam

Department of Electrical Engineering

Andrew Edwin Thangaraj

ARBITRARY NETWORKS

HALF-DUPLEX RELAY

High throughput

KEY TECHNOLOGIES

NEXT GENERATION SYSTEMS

signal processing

Fulltext

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Multistage relaying using interference networks

2010 International Conference on Signal Processing and Communications, SPCOM 2010

Interference in wireless networks results in interdependent communication links between the nodes. Therefore, cross-layer design is essential and makes optimization of wireless networks complicated. In this paper, we study the problem of maximizing the information flow for a multicast session over a wireless network. Different scheduling and coding strategies to handle the interference, including the commonly used interference avoidance strategy, are compared. Results in information theory on achievable rate regions for interference networks are incorporated in the flow optimization to achieve significant improvement. Numerical results illustrate that processing interference at the physical layer results in better information flow compared to interference avoidance. © 2011 IEEE.

2011 3rd International Conference on Communication Systems and Networks, COMSNETS 2011

Processing interference at the physical layer to enhance information flow in wireless networks

Ad Hoc Networks

Hybrid half-duplex/full-duplex multi-hop relaying schemes: Outage performance and power optimization

Journal	2010 International Conference on Signal Processing and Communications, SPCOM 2010
Open Access	Yes