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International Journal of Communications, Network and System Sciences is an international journal dedicated to the latest advancements in communications, network and system Science. The goal of this journal is to keep a record of the state-of-the-art research and promote the research work in the areas. This journal inv…
Jeonghwan LEE, Gilsang YOON, Namgil LEE, Sangjin RYOO, Cheolwoo YOU, Intae HWANG
In this paper, we propose a Double-Space Time Transmit Diversity (D-STTD) communication system with Adaptive Modulation and Coding (AMC) scheme and analyze its performance using simulation experiments. The simulation results show that the probability of selec…
Bo LI, Hai ZHAO, Chun-He SONG, Hui LI, Jun AI
An approach to design and implement the control function of LD (Ladder Diagram) in the hydropower simulation system based on all paths searching algorithm is proposed in this paper. LD is widely used as a programming language for PLC (Programmable Logic Contr…
Maali ALBALT, Qassim NASIR
A Mobile Ad Hoc Network (MANET) is a collection of mobile nodes that can communicate directly over wireless media, without the need for a preconfigured infrastructure. Several approaches have been suggested to improve Quality of Service (QoS) in IEEE 802.11-b…
Jun ZHANG, Hai ZHAO, Chao LI, Xin GE
Being a huge system, Internet topology structure is very complex. It can’t be treated as a plane simply, and its hierarchy must be analyzed. We used the k-core decomposition to disentangle the hierarchical structure of Internet Router-level topology. By analy…
Hrishikesh VENKATARAMAN, Pradeep Kumar JAIN, Segu REVANTH
Multihop cellular networks is an exciting and a fledgling area of wireless communication which offers huge potential in terms of coverage enhancement, data-rates, power reduction, and various other quality of service improvements. However, resource allocation…
Sanjay Kumar SHARMA, S. Naseem AHMAD
In recent times, there has been growing interests in integration of voice, data and video traffic in wireless communication networks. With these growing interests, WCDMA has immerged as an attractive access technique. The performance of WCDMA system is deteri…
Xia LIU, Marek E. BIALKOWSKI, Feng WANG
The paper reports on investigations into the effect of spatial correlation on channel estimation and capacity of a multiple input multiple output (MIMO) wireless communication system. Least square (LS), scaled least square (SLS) and minimum mean square error…
Qassim NASIR
A True Random Binary Generator (TRBG) based on a zero crossing digital phase-locked loop (ZCDPLL) is proposed. In order to face the challenges of using the proposed TRBG in cryptography, the proposed TRBG is subjected to the AIS 31 test suite. The ZCDPLL oper…
Jong Hak JUNG, Won Mee JANG, Lim NGUYEN
Self-encoded spread spectrum eliminates the need for traditional pseudo noise (PN) code generators. In a self-encoded multiple access (SEMA) system, the number of users is not limited by the number of available sequences, unlike code division multiple access…
Rama Krishna CHALLA, Saswat CHAKRABARTI, Debasish DATTA
In this paper, an improved analytical model for IEEE 802.11 distributed coordination function (DCF) under finite load is proposed by closely following the specifications given in IEEE 802.11 standard. The model is investigated in terms of channel throughput u…
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International Journal of Communications, Network and System Sciences is an international journal dedicated to the latest advancements in communications, network and system Science. The goal of this journal is to keep a record of the state-of-the-art research and promote the research work in the areas. This journal inv… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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