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A robust adaptive weighted constant modulus algorithm is proposed for blind equalization of wireless communication systems under impulsive noise environment. The influence of the impulsive noise is analyzed based on numerical analysis method. Then an adaptive weighted constant modulus algorithm is constructed to adaptively suppress impulsive noise. Theoretical analysis is provided to illustrate that...
More and more study and application of ubiquitous healthcare system have been based on WBN (wireless body area networks). However, there are several important aspects that should be considered, such as the large amount sensing data, limited mobile terminal power supply, wireless bandwidth for video data flow. In ubiquitous healthcare networks, some personal health-care data are very important, such...
Efficient utilization of limited spectrum resource has been a major issue in wireless communication systems, which has triggered the design and development of advanced cellular networks. Recently, heterogeneous network (HetNet) with small cells to satisfy the demand for higher data rate transmission and throughput has attracted a lot of attention in the unlicensed spectrum bands environment to overcome...
Wireless Sensor Network (WSN) is one of the key technologies of 21st century, while it is a very active and challenging research area. It seems that in the next coming year, thanks to 6LoWPAN, these wireless micro-sensors will be embedded in everywhere, because 6LoWPAN enables P2P connection between wireless nodes over IPv6. Nowadays different implementations of 6LoWPAN stacks are available so it...
Clustering is a good method to increase WSN lifetime and particularly for smart environment. In this paper, we present fuzzy position based routing for clustered sensor network. It is very useful for the smart environment applications of wireless sensor network without GPS support. The destinations could be located with ambiguous position vectors, and the long time and energy consumption of requesting/replying...
The model of the mobile communication location management with self-similar stream is proposed. This paper investigates the model and proposes a probability formula of the count of the location areas for a mobile crossing by the density evolution method of vector Markov processes and overcoming analytic difficulty. These results provide a theoretical basis for quantitative evaluation of mobility management
An efficient authenticating mobile user protocol for wireless communications was proposed in this paper. The most important feature of our proposed protocol has the property of authenticating mobile user. In this scheme, the mobile stations must be authenticated by visit network. We use the pre-computing, unbalanced technique in which mobile stations have far less computational and communication requirements...
Voice over Internet (VoIP) has been experiencing enormous growth in recent years. While posed to replace traditional PSTN for both enterprise and residential customers, VoIP has yet to achieve the same level of quality and reliability as PSTN. One key challenge is that a growing segment of customers is increasingly relying on WiFi connections. VoIP over WiFi (VoWiFi) experiences significant degradation...
In this paper, we developed a wireless blood pressure monitoring system which provides a useful tool for users to measure and manage their daily blood pressure values. This system includes an ARM-based blood pressure monitor with a ZigBee wireless transmission module and a PC-based management unit with graphic user interface and database. The wireless blood pressure monitor can measure the blood pressure...
The wireless sensor networks (WSN) with their constant evolution, need new management methods to be monitored efficiently by taking into account their constraints such as energy consumption, reliability and remote monitoring. Note that WSN has diverse application domains: smart home, smart care, environmental data collection etc. In order to manage a large scale WSN, some wireless sensor network management...
In this research, our aim is to increase the efficiency of individual visitors and the whole system by reducing traffic congestion in large-scale crowdpsilas activities. To achieve the goal, a route guidance mechanism with centralized information control (CIC) is proposed by granting priority to visitors using CIC. Through multi-agent simulation, we confirmed that the CIC mechanism was effective in...
The Wireless Sensor Networks (WSN), with their constant evolution, need more and more practical and effective WSN Management Tools (WMT) for large-scale deployment. Due to the resource constraints of wireless sensor node, it is impossible to implement the full classical SNMP standard in WSN applications. Therefore, it is important to develop new WMT providing a subset of functionalities of SNMP standard...
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