Massive MIMO via Cooperative Users

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


We consider a case where K closely located users communicate with a base station in the uplink of a wireless communication system. Each user has a certain number of assigned time-frequency slots at its disposal. At a small cost, which we in this paper consider as negliable, the users can communicate with each other and share their data. Thus, they can cooperate in the uplink in order to save transmit power. When many single-antenna users cooperate tightly to enhance their communication using maximum-ratio transmission, they essentially form a massive MIMO array. We investigate the case with a single receiving base station antenna, but the same general principle applies with multiple receiving antennas. We formulate a game theoretic model for this, and study what savings are possible, and to what extent users are willing to take part in the cooperation. Our findings are that large gains are possible, and that all users cooperate. Further, users are able to establish their transmit powers without any moderator.


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Communication Systems
Original languageEnglish
Title of host publication50th Asilomar Conference on Signals, Systems and Computers, 2016
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)978-1-5386-3954-2
Publication statusPublished - 2017 Mar
Publication categoryResearch
Event50th Annual Asilomar Conference on Signals, Systems, and Computers (ASILOMAR 2016) - Asilomar Hotel & Conference Grounds, Pacific Grove, United States
Duration: 2016 Nov 62016 Nov 9


Conference50th Annual Asilomar Conference on Signals, Systems, and Computers (ASILOMAR 2016)
CountryUnited States
CityPacific Grove