학술논문
Adaptive Modulation and Combining for Bandwidth Efficient Communication over Fading Channels
Document Type
Conference
Author
Source
2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications Personal, Indoor and Mobile Radio Communications Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on. 1:542-546 2005
Subject
Language
ISSN
2166-9570
2166-9589
2166-9589
Abstract
Traditional fading mitigation techniques are designed relative to the worst-case channel conditions, resulting in a poor utilization of the spectrum and the available power a good percentage of the time. In contrast, we introduce and investigate in this paper new adaptive modulation and diversity combining techniques that jointly select the most appropriate constellation size and the most suitable diversity branches in response to the channel variation and given a desired bit error rate (BER) requirement. Numerical results show that these newly proposed adaptive modulation and combining schemes can reduce considerably the average receiver channel estimation complexity as well as the power drain from the battery while offering full spectral efficiency and satisfying the desired outage probability and BER requirements.