Multi-Antenna Spatial Multiplexing in Overlaid Wireless Networks: Transmission Capacity Analysis

スポンサーリンク

概要

• 論文の詳細を見る

• This paper investigates the transmission capacity of open-loop spatial multiplexing with zero-forcing receivers in overlaid ad hoc networks. We first derive asymptotic closed-form expressions for the transmission capacity of two coexisting networks (a primary network vs. a secondary network). We then address a special case with equal numbers of transmit and receive antennas through exact analysis. Numerical results validate the accuracy of our expressions. Our findings show that the overall transmission capacity of coexisting networks will improve significantly over that of a single network if the primary network can tolerate a slight outage probability increase. This improvement can be further boosted if more streams are configured in the spatial multiplexing scheme; less improvement is achieved by placing more antennas at the receive side than the transmit side. However, when the stream number exceeds a certain limit, spatial multiplexing will produce negative effect for the overlaid network.

著者

• Yang Hongwen

  Wireless Communication Center Beijing University

• Yang Dacheng

  Wireless Communication Center Beijing University

• Zhang Xin

  Wireless Theories And Technologies Lab (wt&t) Beijing University Of Posts And Telecommunications

• WANG Xianling

  Wireless Theories and Technologies Lab, Beijing University of Posts and Telecommunications (BUPT)

関連論文

• Capacity of Fading Channels with Quantized Channel Side Information(Fundamental Theories for Communications)
• An Efficient Statistical Pruning Algorithm for Fixed-Complexity Sphere Decoder
• Ergodic Capacity Analysis of MIMO Multi-Keyhole Channel in Rayleigh Fading
• A New Reduced-Complexity Decoding Algorithm for LDPC Codes(Fundamental Theories for Communications)
• Multi-Antenna Spatial Multiplexing in Overlaid Wireless Networks: Transmission Capacity Analysis

スポンサーリンク