An OFDM based adaptive modulation scheme employing variable coding rate

T Nakanishi, S Sampei, H Harada… - IEICE transactions on …, 2005 - search.ieice.org
This paper proposes an OFDM based adaptive modulation scheme employing variable
coding rate (VCR OFDM AMS), which selects optimum modulation and coding scheme …

[PDF][PDF] An OFDM Based Adaptive Modulation Scheme Employing Variable Coding Rate in Dynamic Parameter Controlled-OF/TDMA Systems

T Nakanishi, S Sampei, H Harada… - Proc …, 2004 - scholar.archive.org
In this paper, we introduce variable coding rate (VCR) control to OFDM adaptive modulation
scheme (OFDM AMS) in order to realize high throughput with relatively simple transceiver …

High bit rate transmission scheme with a multilevel transmit power control for the OFDM based adaptive modulation systems

T Yoshiki, S Sampei, N Morinaga - IEEE VTS 53rd Vehicular …, 2001 - ieeexplore.ieee.org
This paper proposes a multilevel transmit power control (MTPC) for OFDM based adaptive
modulation systems (OFDM AMS) to achieve high bit rate transmission services without …

Improved AMC using adaptive SIR thresholds in OFDM based wireless systems

JW Choi, YH Lee - IEEE Wireless Communications and …, 2006 - ieeexplore.ieee.org
Adaptive modulation with coding (AMC) is often employed to enhance the throughput of
OFDM based wireless systems. The AMC mode is usually adjusted according to the signal …

OFCDM based adaptive modulation with antenna array in fading channels

K Chang, Y Han - The 57th IEEE Semiannual Vehicular …, 2003 - ieeexplore.ieee.org
In this paper, a multilevel transmit power allocation (MTPA) for orthogonal frequency-code
division multiplexing (OFCDM) based adaptive modulation system with antenna array is …

Symbol-by-symbol based multilevel transmit power control for OFDM based adaptive modulation under high mobility terminal conditions

T Yoshiki, S Sampei, N Morinaga - IEICE transactions on …, 2003 - search.ieice.org
This paper proposes a symbol-by-symbol-based multilevel transmit power control (MTPC)
scheme for orthogonal frequency division multiplexing (OFDM) based adaptive modulation …

Sub-band spreading technique for adaptive modulation in OFDM systems

BC Jung, JK Kwon, H Jin… - Journal of Communications …, 2008 - ieeexplore.ieee.org
We propose a sub-band spreading technique for adaptive modulation (AM) in orthogonal
frequency division multiplexing (OFDM) systems in order to reduce signaling overheads and …

Efficient techniques in OFDM system with channel evaluation

SY Yeo, JS Yoon, MS Baek, YH You… - IEICE transactions on …, 2006 - search.ieice.org
In this letter, we aim at the study of an OFDM system that employs adaptive modulation
techniques to achieve efficient transmission service. In adaptive modulation techniques, a …

Threshold controlling scheme for adaptive modulation and coding system

D Takeda, YC Chow, P Strauch… - IEICE transactions on …, 2006 - search.ieice.org
Adaptive modulation and coding scheme (AMC) is an effective way to achieve high data rate
communication. In AMC system, the key issue is to determine the rule for switching among …

One‐cell reuse TDMA system using OFDM‐based adaptive modulation and multilevel transmit power control schemes

T Nakanishi, S Sampei… - … and Communications in …, 2005 - Wiley Online Library
Abstract OFDM AMS/MTPC (OFDM‐based Adaptive Modulation Scheme with Multilevel
Transmit Power Control) using multilevel transmit power control schemes to set the …