Name
Abstract | ||
|---|---|---|
In this paper, a downlink communication system, in which a Base Station (BS) equipped with M antennas communicates with N (N >> 1) single-antenna users, in a Rician fading environment is considered. The asymptotic (in terms of the number of users) sum-rate capacity of the system, as well as the capacity-achieving strategies, are derived. The main results of the paper are as follows: i) in the region of kappa = o(log N), where kappa denotes the Rician factor, the sum-rate capacity scales as M log (1 + P/M eta), where P denotes the SNR and eta =(Delta) log N/1+kappa, which is achieved by Zero-Forcing Beam-Forming (ZFBF) along with a low-complexity user selection algorithm that considers only the scattered component of the users' channels, ii) in the region kappa = omega(log N), in the case of co-located transmit antennas, the capacity scales as log(1 + MP), which is achieved by Time Division Multiple Access (TDMA), iii) in the region kappa = omega(log N), in the case of isotropically-distributed specular components, the sum-rate capacity behaves as M log(1 + P), which is achieved by ZFBF, along with a user selection algorithm that considers only the specular component of the users' channels. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/ISIT.2008.4595086 | ISIT |
Keywords | Field | DocType |
MIMO communication,Rician channels,broadcast channels,time division multiple access,MIMO Rician broadcast channels,Rician factor,Rician fading channel,SNR,downlink communication system,time division multiple access,zero-forcing beam-forming | Discrete mathematics,Base station,Binary logarithm,Combinatorics,Computer science,Selection algorithm,MIMO,Omega,Time division multiple access,Telecommunications link,Rician fading | Conference |
Citations | PageRank | References |
1 | 0.36 | 13 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Alireza Bayesteh | 1 | 337 | 24.21 |
| Kamyar Moshksar | 2 | 47 | 10.74 |
| Amir K. Khandani | 3 | 674 | 75.15 |