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作者:Salahuddin Muhammad Salim Zabir , J. H. Abawajy , Farid Ahmed ...
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3189-3191Academy
摘要:The domain of computer networks is evolving and expanding fast in recent years. New technologies, protocols, services and usage patterns have contributed to the major research interests in this area of computer science. We aim at bringing forward some of these interesting develop...
作者:Md. Nazmul Islam Khan , Md. Jobayer Alam
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3192-3199Academy
摘要:The choice of channel estimation is of fundamental importance in OFDM receiver designs, which further involves a trade-off between complexity and estimation accuracy. In pilot-symbol-aided OFDM system, the Least Square (LS) estimator suffers from inherent additive Gaussian noise ...
作者:M. M. Kamruzzaman
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3200-3206Academy
摘要:This paper compares the performance of a decode and forward relay assisted wireless uplink with direct wireless uplink in the presence of rayleigh fading where source is equipped with single transmit antenna (Tx), relay is equipped with multiple transmit and receive antennas (Rx)...
作者:Duc Minh Pham , Syed Mahfuzul Aziz
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3207-3214Academy
摘要:Low density parity check (LDPC) codes are error-correcting codes that offer huge advantages in terms of coding gain, throughput and power dissipation in digital communication systems. Error correction algorithms are often implemented in hardware for fast processing to meet the re...
作者:A. K. M. Baki , Nemai Chandra Karmakar
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3215-3220Academy
摘要:The ultra high frequency (UHF) band spectrum will likely be congested in near future since the next generation wireless as well as Radio Frequency Identification (RFID) system users will witness the use of UHF band technology with increased demand of bandwidth, bit rate, frequenc...
作者:Wen-Li Li , Chun-Hung Richard Lin , Chih-Heng Ke
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3230-3236Academy
摘要:Recently, voice over Internet Protocol (VoIP) has gained much attention in wireless local area networks (WLANs). Although IEEE 802.11e enhanced distributed channel access (EDCA) has been standardized to provide voice traffic with quality of service (QoS) support, the voice qualit...
作者:Lei Wang , Jui-Yu Yang , Yu-Yun Lin ...
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3221-3229Academy
摘要:Many studies were done on design algorithms to completely cover an area. We can call the issue as a complete coverage problem. Although there were many researches about proposing a partial coverage issue; almost all of the studies only focus on lengthening the lifespan of wireles...
作者:Baobao Liu , Junying Zhang , Cong Xu
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3237-3241Academy
摘要:Direction-of-arrival (DOA) estimation of coherent sources is a significant problem in impulsive noise environments. In this paper, a robust estimation algorithm which combines the ideas of spatial smoothing (SS) and infinity-norm normalization (INF) is presented, referred to...
作者:Xue Li , Yingan Cui , Xia Hui
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3242-3250Academy
摘要:Structure ontology characteristic of blogosphere is one of the hot topics in social computing. It has an important research value for blog dissemination, blog community discovery, blog mining etc. From the empirical research on a number of blogospheres in the real world, we find ...
作者:Xue Miao , Gang Fu , Ruitao Ma ...
来源:[J].Journal of Networks, 2014, Vol.9 (12), pp.3251-3262Academy
摘要:The Internet has abundant path redundancy, especially in the interdomain routing. However, current routing system can not exploit the Internet path diversity and utilize the disjoint end-to-end paths efficiently. The unawareness of sources to the path selection and the best paths...

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