Heterogeneous spectrum sharing with rate demands in cognitive MIMO networks

Diep N. Nguyen, Marwan M Krunz

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

2 Citations (Scopus)

Abstract

We are interested in addressing a fundamental question: what are conditions under which an ad hoc cognitive radio MIMO (CMIMO) network can support a given rate-demand profile, defined as the set of rates requested by individual links? From an information theoretic view, a rate profile can be supported if it is within the network capacity region. However, the network capacity region of interfering MIMO networks is essentially unknown. In dynamic spectrum access, the problem is even more challenging due to the dynamics of primary/legacy users (PUs), resource constraints, and the heterogeneity of opportunistic spectrum (i.e., the set of available channels varies from one to another). Considering a non-centralized setup, we address the above question in a noncooperative game framework where each CMIMO link independently optimizes its spectrum, power allocation, and MIMO precoders to meet its rate demand. We derive sufficient conditions for the existence of a NE are derived. These conditions establish an explicit relationship between the rate-demand profile and interference from PUs, CMIMO network's interference, and CMIMO nodes' power budget. We also show that a NE, if exists, is unique. Our results help to characterize the network capacity region of CMIMO networks.

Original languageEnglish (US)
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3054-3059
Number of pages6
ISBN (Print)9781479913534
DOIs
StatePublished - 2013
Event2013 IEEE Global Communications Conference, GLOBECOM 2013 - Atlanta, GA, United States
Duration: Dec 9 2013Dec 13 2013

Other

Other2013 IEEE Global Communications Conference, GLOBECOM 2013
CountryUnited States
CityAtlanta, GA
Period12/9/1312/13/13

Fingerprint

MIMO systems
Cognitive radio
Wave interference
Power spectrum
Telecommunication links

Keywords

  • Cognitive radio
  • interfering network capacity
  • MIMO
  • Nash equilibrium
  • noncooperative game
  • rate demand

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Nguyen, D. N., & Krunz, M. M. (2013). Heterogeneous spectrum sharing with rate demands in cognitive MIMO networks. In GLOBECOM - IEEE Global Telecommunications Conference (pp. 3054-3059). [6831540] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOM.2013.6831540

Heterogeneous spectrum sharing with rate demands in cognitive MIMO networks. / Nguyen, Diep N.; Krunz, Marwan M.

GLOBECOM - IEEE Global Telecommunications Conference. Institute of Electrical and Electronics Engineers Inc., 2013. p. 3054-3059 6831540.

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

Nguyen, DN & Krunz, MM 2013, Heterogeneous spectrum sharing with rate demands in cognitive MIMO networks. in GLOBECOM - IEEE Global Telecommunications Conference., 6831540, Institute of Electrical and Electronics Engineers Inc., pp. 3054-3059, 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, GA, United States, 12/9/13. https://doi.org/10.1109/GLOCOM.2013.6831540
Nguyen DN, Krunz MM. Heterogeneous spectrum sharing with rate demands in cognitive MIMO networks. In GLOBECOM - IEEE Global Telecommunications Conference. Institute of Electrical and Electronics Engineers Inc. 2013. p. 3054-3059. 6831540 https://doi.org/10.1109/GLOCOM.2013.6831540
Nguyen, Diep N. ; Krunz, Marwan M. / Heterogeneous spectrum sharing with rate demands in cognitive MIMO networks. GLOBECOM - IEEE Global Telecommunications Conference. Institute of Electrical and Electronics Engineers Inc., 2013. pp. 3054-3059
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