Determination of the cyclic prefix length in MC-CDMA using firefly algorithm
نویسندگان
چکیده
منابع مشابه
Diffused Channel Estimation and Reception for Cyclic Prefix-free MC-CDMA Arrayed-MIMO Communication Systems
An arrayed-MIMO communication system, which employs antenna arrays at both ends of the wireless link, is proposed to leverage upon spatial information such as directions-of-arrival to achieve an improvement in performance. This is in contrast with conventional MIMO systems, which typically assume multiple independent antenna elements at the transmitters and receivers. This paper focuses on an a...
متن کاملOFDM Narrowband Interference Estimation Using Cyclic Prefix Based Algorithm
OFDM systems experience BER degradation in the presence of narrowband interference (NBI). We propose a novel NBI cancellation algorithm for a wideband OFDM receiver. Modelling the NBI as a single-tone sinusoid, subspace-based (SB) methods can be used to estimate it. However, direct application of SB methods to the received signal yields poor results except when the system is operating at very l...
متن کاملdetermination of maximal singularity free zones in the workspace of parallel manipulator
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
15 صفحه اولThe Cyclic Prefix Length Influence on OFDM-Transmission BER
Orthogonal Frequency Division Multiplexing (OFDM) is one of the recent years equalization approaches used in order to combat the inter-symbol interference introduced by the frequency selectivity of the radio channels. The circular extension of the data symbol, commonly referred to as cyclic prefix is one of the key elements in an OFDM transmission scheme. The influence of the cyclic prefix dura...
متن کاملPerformance Improvement of MC-CDMA & CDMA using Smart Antenna Technique
Performance improves in terms of coverage in the MC-CDMA & CDMA network with the help of simulation model and an evaluation method for the smart antenna system is presented. The EC/Io coverage area is presented with the proposed method that can show the impact of smart antenna system on the function of antenna type and beam width. The performance improvements are remarkable in the smart antenna...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pamukkale University Journal of Engineering Sciences
سال: 2017
ISSN: 1300-7009,2147-5881
DOI: 10.5505/pajes.2016.04764