Energy-Efficient Relaying via Store-Carry and Forward within the Cell

Look-Ahead Strategies Based on Store-Carry and Forward Relaying for Energy Efficient Cellular Communications

With the increasing availability of Internet type services on mobile devices and the attractive flat rate all-you-can-eat billing system, cellular telecommunication networks are experiencing a tremendous growth in data usage demand. However, there are increasing concerns that current network deployment trends (including more efficient radio access techniques and increased spectrum allocation st...

Towards Practical Store-Carry-Forward Networking: Examples and Issues

In the evolution of wireless networks such as wireless sensor networks, mobile ad-hoc networks, and delay/disruption tolerant networks, the Store-Carry-Forward (SCF) message relaying paradigm has been commonly featured and studied with much attention. SCF networking is essential for offsetting the deficiencies of intermittent and range limited communication environments because it allows moving...

Improving Two-Way Selective Decode-and-forward Wireless Relaying with Energy-Efficient One-bit Soft Forwarding

Inspired by the application scenarios such as battery-operated wireless sensor networks (WSN), we investigate the design of an easy-to-implement energy-efficient two-way relaying scheme in which two source nodes exchange their messages with the help of an intermediate relay node. Due to their efficient decoder hardware implementation, block codes, such as Hamming and BCH codes, instead of convo...

Energy-efficient resource allocation for amplify-and-forward relaying in OFDM systems

In this paper, we study end-to-end energy efficiency of an orthogonal frequency-division multiplexing relay-based system under power constraints for the base station and relay node with system circuit power considerations. Using a two-phase amplify-and-forward relaying protocol, we assume that relay has a fixed power constraint and the source power can vary in transmission power interval where ...

Are Amplify-and-Forward Relaying and Decode-and-Forward Relaying the Same?