Adaptive Modulation and Coding for LTE Wireless Communication

9th Curtin University of Technology Science and Engineering International Conference 2014

自然科学;工业技术

Hadi, S.S.^1 ; Tiong, T.C.^1

Department of Electrical and Computer Engineering, Faculty of Engineering and Science, Curtin University, Sarawak, Miri, Malaysia^1

关键词: Adaptive modulation and coding;    Base station transmitters;    Forward error correction coding;    High speed downlink packet access;    Mobile wireless channels;    Quadrature phaseshift keying (QPSK);    Quadrature-amplitude modulations (QAM);    Universal mobile telecommunications systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/78/1/012016/pdf
DOI  :  10.1088/1757-899X/78/1/012016

来源: IOP

【 摘 要 】

Long Term Evolution (LTE) is the new upgrade path for carrier with both GSM/UMTS networks and CDMA2000 networks. The LTE is targeting to become the first global mobile phone standard regardless of the different LTE frequencies and bands use in other countries barrier. Adaptive Modulation and Coding (AMC) is used to increase the network capacity or downlink data rates. Various modulation types are discussed such as Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (QAM). Spatial multiplexing techniques for 4×4 MIMO antenna configuration is studied. With channel station information feedback from the mobile receiver to the base station transmitter, adaptive modulation and coding can be applied to adapt to the mobile wireless channels condition to increase spectral efficiencies without increasing bit error rate in noisy channels. In High-Speed Downlink Packet Access (HSDPA) in Universal Mobile Telecommunications System (UMTS), AMC can be used to choose modulation types and forward error correction (FEC) coding rate.