Joint power allocation and beamforming design for full-duplex MIMO cellular systems with spectrum sharing radar

Keshav Singh, Sudip Biswas, Ankit Gupta, Tharmalingam Ratnarajah, Mathini Sellathurai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


The new networking paradigm of opportunistic spectrum sharing is a promising technology for mitigating the scarcity of spectrum, which has resulted from the exponential increase in the number of wireless devices and ubiquitous services. In light of the new concept of Authorized/Licensed Shared Access (ASA/LSA), in this work, we consider the coexistence and spectrum sharing between a collocated multiple-input-multiple-output (MIMO) radar and a full-duplex (FD) multi-user MIMO cellular system consisting of a FD base station (BS) serving multiple downlink and uplink users simultaneously, and accordingly focus on maximizing the detection probability of the radar. The main objective of this paper is to develop an optimization technique for jointly optimizing the beamforming weights at the BS and transmit power for uplink users that can maximize the detection probability of radar while guaranteeing the quality-of-service requirements of each user and power budget for the uplink users and the BS. The joint beamforming design is a non-convex problem which, we convert into a second-order cone programming (SOCP) problem and propose an iterative algorithm for finding the optimal solution. Numerical results demonstrate the feasibility of the spectral coexistence and show a scalable trade-off in performance of both systems.

Original languageEnglish
Title of host publication2017 NASA/ESA Conference on Adaptive Hardware and Systems, AHS 2017
Number of pages8
ISBN (Electronic)9781538634394
Publication statusPublished - 21 Sept 2017
Event2017 NASA/ESA Conference on Adaptive Hardware and Systems - Pasadena, United States
Duration: 24 Jul 201727 Jul 2017


Conference2017 NASA/ESA Conference on Adaptive Hardware and Systems
Abbreviated titleAHS 2017
Country/TerritoryUnited States


  • beamforming
  • Full-duplex
  • MIMO radar
  • multi-user MIMO
  • opportunistic spectrum access
  • optimization

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Instrumentation


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