搜索资源列表
-
0下载:
802.11a WLAN PHY
There are *three* versions of the 802.11a physical layer model:
R13/IEEE80211a.mdl:
Requires R13 (MATLAB 6.5) and Stateflow (for adaptive modulation control)
R13/IEEE80211a_NoSF.mdl:
Requires R13 (MATLAB 6.5), but
-
-
0下载:
This project demonstrates OFDM with adaptive modulation applied to Multiple-Input Multiple-
Output (MIMO) systems.
The analysis and simulation
is considered in two stages. The rst stage involves the application of a variable-rate
variable
-
-
0下载:
IEEE802.11a WLAN physical layer model,with demonstration of adaptive modulation and coding
-
-
0下载:
摘要本文首先分析了自适应调制的原理, 它以频谱效率最高为准则, 在恒定功率约束条件下对接收信噪
比优化来选择不同调制阶数。然后引入时变多径信道模型, 通过仿真给出了自适应在此信道条件下的性能, 并分析
了信道估计误差对其性能的影响。
关键词自适应调制, 调制, 时变信道-Abstract This paper first analyzes the principle of adaptive modulation, spectral efficiency it up to standa
-
-
0下载:
IEEE 802.11a WLAN physical layer model, with demonstration of adaptive modulation and coding
-
-
0下载:
Abstract— We propose a simple speech compression algorithm
using subband division and ADPCM (Adaptive Differential
Pulse Code Modulation) algorithm. Although speech data are
stored in a semiconductor memory device, its capacity and the
availa
-
-
0下载:
自适应OFDM系统能根据信道估计得到信道的状态信息,自适应地调节发送端传输参数,从而提高系统的性能。其中OFDM是一种多载波调制技术,具有频谱利用率高、抗多径干扰、抗突发噪声差错等优点。
在VLC中引入自适应OFDM技术,可以提升系统的容量,提高传输质量,使系统具有更大灵活性,改善系统性能。在无线光通信领域对该技术的研究已成为个重要的方向。根据现有的研究人员所发表的文献,大多是基于基础性和理论性的研究,对可见光通信技术与自适应OFDM的研究甚少。(The adaptive OFDM syste
-
-
0下载:
PERFORMANCE ENHANCEMENT OF IEEE 802.16E (MOBILE WI-MAX) SYSTEM WITH ADAPTIVE MODULATION AND CODING TECHNIQUES
-