Sum-Rate Capacity of Random Beamforming for Multi-Antenna Broadcast Channels with Other Cell Interference

• Published in: IEEE transactions on wireless communications Vol. 10; no. 8; pp. 2440 - 2444
• Main Authors: MOON, Sung-Hyun, LEE, Sang-Rim, LEE, Inkyu
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.08.2011; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Antennas; Applied sciences; Approximation methods; Array signal processing; Asymptotic properties; Beamforming; Channels; Constraining; Detection, estimation, filtering, equalization, prediction; Downlink; Exact sciences and technology; Gain; Information, signal and communications theory; Interference; MIMO; MIMO broadcast channel; multiuser scheduling; other-cell interference; Radiocommunications; random beamforming; Signal and communications theory; Signal to noise ratio; Signal, noise; Simulation; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Wireless communication; MIMO system; random beamforming; Multiple access; Channel capacity; Broadcast antennas; multiuser scheduling; Downlink; Ergodicity; Scheduling; Beam forming; Radial basis function; Scaling law; Simulation; Extreme value; MIMO broadcast channel; other-cell interference; Signal processing; Broadcast channels; Signal to interference plus noise ratio

In this letter, we analyze the sum rate of random beamforming (RBF) for downlink multi-antenna systems in the presence of other cell interference (OCI). Employing extreme value theory, an expression of the asymptotic ergodic sum rate with a large number of users is derived from the limiting distribu...