Abstract Vehicular Ad hoc Network (Vanet) is one of the emerging technologies to support safety, traffic monitoring and comfort related services. Vanet is a subclass of MANET but its topology changes rapidly and network gets disconnected frequently. The prevailing routing protocol of MANET is very much applicable to Vanet. Because of its frequently disconnecting routes it is difficult to design an... Vehicular Ad hoc Network (Vanet) is one of the emerging technologies to support safety, traffic monitoring and comfort related services. Vanet is a subclass of MANET but its topology changes rapidly and network gets disconnected frequently. The prevailing routing protocol of MANET is very much applicable to Vanet. Because of its frequently disconnecting routes it is difficult to design an efficient routing protocol. Proper design of routing protocol for Vanet makes the network a successful one.. The challenges in VANET are, designing appropriate routing protocols suitable to the traffic model, ensuring proper delivery of emergency messages, security of the data and, avoiding the collision of messages, avoiding flooding of messages, etc. To support such services, broadcasting protocols are used. In this work, we review communication routing protocols for broadcasting mechanisms that alleviate the broadcast storm problem. A novel mechanism is one which includes mesh routers in the network reduces the broadcast storm problem and increasing the dissemination ratio. Read More Read Less

Abstract Mining unknown protocol packet formats is a very effective way to improve network security, especially in promoting the accuracy of network fuzz test. However, researches reverse engineering unknown protocol packets mostly depend on manual analysis, which is extremely time consuming and low efficiency. In this paper, we proposed a new method to infer the unknown protocol packet formats automatically. This... Mining unknown protocol packet formats is a very effective way to improve network security, especially in promoting the accuracy of network fuzz test. However, researches reverse engineering unknown protocol packets mostly depend on manual analysis, which is extremely time consuming and low efficiency. In this paper, we proposed a new method to infer the unknown protocol packet formats automatically. This method could infer the potential TLV fields and extract protocol format with low time consuming. First we define a threshold value for the sum of tag field types. Then we increase the value of a variable standing for the length of a tag filed until the type number of this tag fields reaches the threshold. After the tag filed is obtained, we can easily get the length field and the value field next to it. Run this process on the value field recursively, and we could finally get the whole structure of packet formats. In order to demonstrate the effectiveness, we applied our methods on the Get-Request packets of SNMP. As a result, almost 90% of the TLV structures of packets are extracted, at the same time, the field of Get-Request Id is also inferred successfully. Read More Read Less

Abstract In hospitals, the patients in the ICU need a constant monitoring of their body temperature, SPO2 (Pulse Oximeter Oxygen Saturation) and pulse rate. This paper provides a working model which incorporates sensors to measure important parameters which were mentioned above namely the body temperature, respiratory temperature and pulse rate and transmits the collected data from these sensors to the user... In hospitals, the patients in the ICU need a constant monitoring of their body temperature, SPO2 (Pulse Oximeter Oxygen Saturation) and pulse rate. This paper provides a working model which incorporates sensors to measure important parameters which were mentioned above namely the body temperature, respiratory temperature and pulse rate and transmits the collected data from these sensors to the user through GSM. Thus it reduces the doctor’s work load as the collected data can easily conveyed to the doctor using wireless communication of GSM and also gives more accurate and high precision results. This application has a desired impact on industrial, defense and hospital automation. The hardware of the proposed model is built on a printed circuit board, constituting of microcontroller PIC16F877. The program required to implement the proposed model has written in hi-tech C using MPLAB. Read More Read Less

Abstract The web is the most important platform of our generation. Today web is commonly used to encompass various novel phenomena on the World Wide Web, for example Web 2.0 required a big growth of bi-directional communication. The fast growth of web technology such as: technological scripting and presentation technologies (used to render the web site and allow user interaction), delivered... The web is the most important platform of our generation. Today web is commonly used to encompass various novel phenomena on the World Wide Web, for example Web 2.0 required a big growth of bi-directional communication. The fast growth of web technology such as: technological scripting and presentation technologies (used to render the web site and allow user interaction), delivered a hard access of web contents and resources and demanded more computational power at both of client and server sides. In the context of web future, the term cloud computing is being widely used these days [1], the alliance of cloud computing, wireless communication infrastructure, mobile devices [2], [3], and mobile web, has introduced an innovative computing model, called mobile cloud computing. One of the big problems facing any web content model is how to maintain a %100 up running time. This couldn’t be achieved using traditional web servers, not to mention administration, maintenance and security will become a nightmare for fast growing web content. There is neither scalability nor instancing in the traditional web server’s model. Today’s mobile web model still lacks in resources compared to conventional information processing devices such as a workstations [4], [5], laptops and mobile devices. To offer fancy web content we need more server computational power and much more resources, one of ways to overcome this limitation is mobile cloud computing, Finally, the lightweight architecture for mobile web content access over enterprise cloud mashup (LAMWEC) is proposed to move the world into faster web content implementation [6], more stable web with extra uptime, remove the administrative burden, and simple mobile web site content development through employing the hybrid web application technology using cloud model that will host the application core, and weaving this with the traditional servers that will host separate unique web contents, to offer a fancy mobile mashup cloud computing or hybrid mobile web cloud content with faster access technique. Read More Read Less