Advanced Technologies for Energy-Efficient Cooperative Wireless Communication Systems

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The wireless industry has experienced a tremendous growth in recent years and this is expected to continue in the years to come. As such the overall energy consumption of wireless communication systems cannot be neglected any longer. Additionally, mobile devices such as smart phones and iPads support applications like Youtube and video conferencing over wireless networks that require high transmission rate in the order of Megabits per second. To date, wireless systems have been mostly optimized in terms of bandwidth efficiency and reliability of communication. However, there is an increasing need to improve energy efficiency of modern communication systems. One main reason is to reduce the net carbon footprint of communication networks. The other reason is to prolong the battery life for mobile devices. Whilst the manufacturers' and operators' objective is to reduce overall power consumption, the supported services are demanding higher and faster data rates, lower latency and increased service coverage. These competing needs pose a significant challenge in designing and deploying modern wireless communication systems. The objective of the proposed research is to design innovative technologies that can improve energy efficiency for future generation wireless communication systems that rely on so-called "cooperation" mechanism among the communicating users/nodes in the network. In particular, using a holistic design approach, we plan to develop novel wireless transmitter/receiver pair and radio resource allocation schemes for cooperative communication systems that can save transmission signal energy significantly. The outcome of this research program is expected to advance knowledge and deliver technologies to communication industries in order to implement energy-efficient wireless networks. This will not only prolong the battery life of mobile devices but will also save the Canadian environment by reducing energy consumption as well as electromagnetic radiation.