Performance of Hybrid-MIMO Receiver Scheme in Cognitive Radio Network

In this paper, we evaluate the performance of the Hybrid-MIMO Receiver Scheme (HMRS) in Cognitive Radio network (CR-network). We investigate the efficiency of the proposed scheme which the energy level and user number of primary user are varied according to the characteristic of CR-network. HMRS can allow users to transmit either Space-Time Block Code (STBC) or Spatial-Multiplexing (SM) streams simultaneously by using Successive Interference Cancellation (SIC) and Maximum Likelihood Detection (MLD). From simulation, the results indicate that the interference level effects to the performance of HMRS. Moreover, the exact closed-form capacity of the proposed scheme is derived and compared with STBC scheme.

Authors:

• Tanapong Khomyat
• Peerapong Uthansakul
• Monthippa Uthansakul

Keywords:

• Hybrid-MIMO
• Cognitive radio network (CRnetwork)
• Symbol Error Rate (SER)
• Successive interference cancellation (SIC)
• Maximum likelihood detection (MLD).

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