The multiplexing gain of wireless networks
Anders Høst-Madsen, Aria Nosratinia · 2005
At high SNR the capacity of a point-to point MIMO system with NTtransmit antenna and NRreceive antenna is min{NT, NR} log(SNR) + O(1). The factor in front of the log is called the multiplexing gain. In this paper we consider a network with 2N nodes (N source destination pairs) that each have only a single antenna. These single antenna nodes could cooperate to form larger virtual arrays, usually called cooperative diversity, user cooperation, or coded cooperation. The question we ask is: how large a multiplexing gain is possible. We prove that for N = 2 the multiplexing gain is 1, and consider generalizations to larger networks