Radio Resource Management for Cellular Networks Enhanced by Inter-User Communication

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School of Electrical Engineering | Doctoral thesis (article-based)
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Authors

Date

2012

Department

Tietoliikenne- ja tietoverkkotekniikan laitos
Department of Communications and Networking

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Mcode

Degree programme

Language

en

Pages

144

Series

Aalto University publication series DOCTORAL DISSERTATIONS, 8/2012

Abstract

The importance of radio resource management will be more and more emphasized in future wireless communication systems. For fair penetration of wireless services and for improved local services, inter-user communication has been receiving wide attention as it opens up various possibilities for user cooperation. The capability of inter-user communication imposes higher demands on radio resource management as additional considerations are needed. The demands for intelligent management of radio resources is also emphasized by the sparsity of radio resources. As the available spectral resources are assessed as under-utilized, much effort is devoted to developing advanced resource management methods for improving the spectral usage efficiency. The research of this thesis has contributed to the radio resource management for cellular networks enhanced by inter-user communication. Recognizing that inter-user communication can be used for message relaying or for direct communication purposes, two use cases are considered that leverage the synergy of users: cooperative relay selection and Device-to-Device (D2D) communication. We identify the importance of stochastic geometry consideration on cellular users for evaluating system performance in cooperative networking. We develop an algorithm for efficiently selecting cooperative users to maximize an End-to-End (e2e) performance metric. We analyze the optimal resource sharing problem between D2D communication and infrastructure-supported communication. We study the impact of imperfect Channel State Information (CSI) on the performance of systems with inter-user communication. Simulation results show that the performance of users with unfavorable propagation conditions can be improved with cooperative communication in a multi-cell cellular environment, at the expense of radio resources. Further, our results show that the selection of multiple cooperative users is beneficial in cases where the candidate cooperative users are spatially distributed. For resource sharing between the D2D and infrastructure-supported communication, our results show that the proposed resource sharing scheme enables higher intra-cell resource reuse without blocking the infrastructure-supported communication .

Description

Supervising professor

Tirkkonen, Olav

Keywords

cellular systems, cooperative relaying, device-to-device communication

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Parts

  • [Publication 1]: Chia-Hao Yu, Olav Tirkkonen, and Jyri Hämäläinen. Opportunistic Relay Selection with Cooperative Macro Diversity. EURASIP Journal on Wireless Communications and Networking, Vol. 2010, Article ID: 820427, 2010
  • [Publication 2]: Chia-Hao Yu and Olav Tirkkonen. Opportunistic Multiple Relay Selection with Diverse Mean Channel Gains. Accepted for publication in IEEE Transactions on Wireless Communications, Accepted date: 25, November 2011
  • [Publication 3]: Pekka Jänis, Chia-Hao Yu, Klaus Doppler, Cassio Ribeiro, Carl Wijting, Klaus Hugl, Olav Tirkkonen, and Visa Koivunen. Device-to-Device Communication Underlaying Cellular Communications Systems. International Journal of Communications, Network and System Sciences, vol. 2, no. 3, pp. 169–178, June 2009
  • [Publication 4]: Chia-Hao Yu, Olav Tirkkonen, Klaus Doppler, and Cassio Ribeiro. On the Performance of Device-to-Device Underlay Communication with Simple Power Control. In Proc. IEEE Vehicular Technology Conference (VTC Spring 2009), Barcelona, Spain, April 2009
  • [Publication 5]: Chia-Hao Yu, Olav Tirkkonen, Klaus Doppler, and Cassio Ribeiro. Power Optimization of Device-to-Device Communication Underlaying Cellular Communication. In Proc. IEEE International Conference on Communications (ICC’09), Dresden, Germany, June 2009
  • [Publication 6]: Chia-Hao Yu, Klaus Doppler, Cassio Ribeiro, and Olav Tirkkonen. Performance Impact of Fading Interference to Device-to-Device Communication Underlaying Cellular Networks. In Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC’09), Tokyo, Japan, September 2009
  • [Publication 7]: Chia-Hao Yu, Klaus Doppler, Cassio Ribeiro, and Olav Tirkkonen. Resource Sharing Optimization for Device-to-Device Communication Underlaying Cellular Networks. IEEE Transactions on Wireless Communications, vol. 10, pp. 2752–2763, August 2011

Citation

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https://urn.fi/URN:ISBN:978-952-60-4476-7

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[diss] Sähkötekniikan korkeakoulu / ELEC