Distributed Spectrum Access in Dense 5G Networks
2015 (English)Conference paper (Refereed)
The next generation of radio access networks is expected to offer users flexible radio access to a wide range of frequency bands and radio access technologies (RATs) in dense deployments. In this context, we investigate novel lightweight algorithms for spectrum access in ultra-dense networks. We pose the problem as a network utility maximization and apply Lagrange duality to devise distributed algorithms for users to jointly select access nodes and spectrum bands. Leveraging our theoretical framework, we further propose a heuristic scheme for spectrum access based on the expected long-term user data rate per RAT, hence on a measure of the RATs’ traffic load. Numerical examples show that our schemes achieve significant throughput gains on top of the gains achievable by network densification.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-184613OAI: oai:DiVA.org:kth-184613DiVA: diva2:916377
IEEE 26th Annual International Symposium on on Personal, Indoor and Mobile Radio Communications, PIMRC 2015
QS 20162016-04-012016-04-012016-04-05Bibliographically approved