RANDOM NETWORK CODING IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) NETWORKS USING CONTROL SIGNALING

Problem:

Rapidly increasing mobile traffic has become a serious concern for current wireless networks. It is predicted that there will be 50 billion connected devices by 2020. To enable communication among these devices with limited radio resources, major structural changes are expected to take place in next generation Internet. In conventional wireless networks, functionalities such as routing, error control coding and data storage are designed in accordance with the principle of network nodes performing transmission independently. Unconventional approaches in network design are required to deal with the ever-increasing demand for wireless applications and services.

Technology:

The present invention is a multi-carrier and multi-way random network coded cooperative communication system. Through the deployment of relay nodes, efficient resource utilization mechanisms are devised for scalable wireless networks with randomly changing topologies.

Advantages:

•Enabling cooperative communications

•Enhancing coverage area

•Reducing the total transmit power

•Improving outage performance

Related Publications:

•Heidarpour, G. Karabulut Kurt, and M. Uysal, “Finite-SNR Diversity-Multiplexing Tradeoff for Network Coded Cooperative OFDMA 

Systems” IEEE Transactions on Wireless Communications, vol.16, no.3, March 2017.

•S. Tedik Basaran, G. Karabulut Kurt, M. Uysal, and I. Altunbas,“A Tutorial on Cooperative Network Coding,” in IEEE Communications Surveys and Tutorials, vol.18, no.4, 2016.

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