Transitition from single carrier to multi carrier equalization
标签： carrier Transitition equalization single
上传时间： 2017-06-19
上传用户：561596
MULTI-CARRIER CDMA in a Rayleigh Fading Channel
标签： MULTI-CARRIER Rayleigh Channel Fading
上传时间： 2013-12-09
上传用户：gmh1314
In 揚erformance of MULTI-CARRIER DS CDMA Systems?we apply a MULTI-CARRIER signaling technique to a direct-sequence CDMA system, where a data sequence multiplied by a spreading sequence modulates multiple carriers, rather than a single carrier. The receiver provides a correlator for each carrier, and the outputs of the correlators are combined with a maximal-ratio combiner. This type of signaling has the desirable properties of exhibiting a narrowband interference suppression effect, along with robustness to fading, without requiring the use of either an explicit RAKE structure or an interference suppression filter.
标签： MULTI-CARRIER erformance signaling technique
上传时间： 2017-07-31
上传用户：宋桃子
OFDM(正交频分复用)技术实际上是MCM(MULTI-CARRIER Modulation，多载波调制)的一种。其主要思想是，将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰(ICI)。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容
标签： MULTI-CARRIER Modulation OFDM MCM
上传时间： 2017-09-03
上传用户：skfreeman
MULTI-CARRIER modulation‚ Orthogonal Frequency Division Multi- plexing (OFDM) particularly‚ has been successfully applied to a wide variety of digital communications applications over the past several years. Although OFDM has been chosen as the physical layer standard for a diversity of important systems‚ the theory‚ algorithms‚ and implementation techniques remain subjects of current interest. This is clear from the high volume of papers appearing in technical journals and conferences.
标签： COMMUNICATIONS MULTI-CARRIER DIGITAL
上传时间： 2020-05-30
上传用户：shancjb
Since the principle of MULTI-CARRIER code division multiple access (MC-CDMA) was simultaneously proposed by Khaled Fazel et al. and Nathan Yee et al. at the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) in the year 1993, MULTI-CARRIER spread spectrum (MC-SS) has rapidly become one of the most wide spread independent research topics on the field of mobile radio communications. Therefore, the International Workshop on MULTI-CARRIER Spread Spectrum (MC-SS) was initiated in the year 1997. MULTI-CARRIER and spread spectrum systems with their generic air interface and adaptive technologies are considered as potential candidates to fulfill the requirements of next generation mobile communications systems.
标签： MULTI-CARRIER Spectrum Spread 2007
上传时间： 2020-05-30
上传用户：shancjb
详细的OFDM设计过程，包括Matlab仿真、DSP源码及文档说明。 OFDM(正交频分复用)技术实际上是MCM(MULTI-CARRIER Modulation，多载波调制)的一种。
上传时间： 2013-12-25
上传用户：dianxin61
This paper investigates the design of joint frequency offset and carrier phase estimation of a multi-frequency time division multiple access (MF-TDMA) demodulator that is applied to a digital video broadcasting—return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based on the interpolation technique for two correlation values in the frequency and phase domains. This simple interpolation technique can significantly improve frequency and phase resolution capabilities of the proposed technique without increasing the number of the correlation values. In addition, the overall block diagram of a digital communications receiver for DVB-RCS is presented, which was designed using the proposed estimation algorithms. Index Terms—Carrier phase estimation, DVB-RCS, frequency offset estimation, interpolation, joint estimation, MF-TDMA.
标签： investigates estimation frequency carrier
上传时间： 2015-12-30
上传用户：ls530720646
This exercise is aimed at exploring how rate control and adaptation of carrier sense threshold can affect spatial reuse (and hence aggregate throughput) in a multi-hop network.
标签： adaptation exploring threshold exercise
上传时间： 2016-05-07
上传用户：D&L37
multi-line Adjunct Communication Server
标签： Communication multi-line Adjunct Server
上传时间： 2015-01-03
上传用户：784533221
