We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Tighter low bound of achievable rate in downlink multiuser MIMO with imperfect CSIT.
- Authors
Shichao Li; Ling Qiu
- Abstract
One of the challenges to implementing downlink multiuser multipleinput multiple-output in practical systems is to overcome the detrimental impact of the imperfect channel state information at transmitter (CSIT). Researchers have derived a low bound to describe the imperfect CSIT's impact on the achievable rate. However, this low bound is not tight, especially when the quality of CSIT is poor. A tighter low bound using the exponential integral is proposed. A strict proof is given and the simulation results verify the tightness.
- Subjects
MULTIUSER computer systems; MIMO systems; TRANSMITTERS (Communication); EXPONENTIAL stability; IMPROPER integrals
- Publication
Electronics Letters (Wiley-Blackwell), 2013, Vol 49, Issue 17, p1
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2013.0966