International Journal of Communication Systems

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This paper is focused on measurements and analysis of phantom mode benefits in G.fast and next generation xDSL systems. The investigation is based on real measurements performed for a multi-quad metallic cable together with theoretical evaluations of ...

Femtocell is regarded as a promising technology to enhance indoor coverage and improve network capacity. However, highly dense and self-organized femtocells in urban environment will result in serious inter-femtocell interference. To solve this problem, ...

Network virtualization and transmission quality optimization are promising techniques for future Internet. Previous researches on virtual network embedding focused on efficient utilization of network resources. In this paper, we present a virtual ...

This work proposes a new method for automatically identifying topologies of lines with one or more sections in a telephone network. The method is based on the examination of both impulse response and time-domain reflectometry trace of a line under test. ...

Cognitive radio has been considered to be one of the main technologies to solve the problem of low spectrum utilization, while the adaptive allocation of network resource is one of the key technologies. A discrete polynary coding immune clonal selection ...

Multipath networks allow each source to send packets from it to its destination over multiple paths, which increases the available bandwidth and throughput for source-destination pairs. Recently, a variety of flow control schemes have been presented for ...

In this paper, we investigate the performance of two-way relay assisted free space optical systems over atmospheric turbulence-induced fading channels affected by molecular absorbtion-induced path losses. A three node, dual-hop, bi-directional, half-...

The ground-to-air communications in the aircraft approach stage suffer from multipath fading. We propose to combat this problem using cooperative communication technique. The relay selection problem is formulated to minimize the spectrum cost while ...

In this paper, an approach of detecting low-rate denial of service attack is proposed on the basis of principal component analysis algorithm. The proposed approach analyzes low-rate denial of service attack flows and handles complicated network flows by ...

Beamforming technique is applied to significantly increase the performance of a MIMO system, if the channel information CI of the communication system is available at the transmitter. For the transmitter to obtain the entire CI, however, a considerable ...

With the characteristics of high self-organized, dynamic, and interoperable, the wireless mesh network WMN is deemed as a potential technology to be applied widely for home, enterprise, and social public service. Many current optimization schemes ...

Wireless sensor network WSN should be designed such that it is able to identify the faulty nodes, rectify the faults, identify compromised nodes from various security threats, and transmit the sensed data securely to the sink node under faulty ...

This work describes and proposes the application of evolutionary algorithms on the multiuser spectrum and SNR margin optimization problem for multicarrier systems, such as digital subscriber line. The proposed method is designed such that it takes ...

According to the disadvantages of real time and continuity for multimedia services in ad hoc networks, a delay constraint multipath routing protocol for wireless multimedia ad hoc networks, which can satisfy quality of service QoS requirement QoS ...