Wireless Communication

J. Venkata Subramanian ¹, A. Pandian ¹, Maneesh Kumar Gupta ²

Affiliations
1 Bharathidasan University, Tiruchi, IN
2 SRM University, IN

Abstract

The opportunistic routing has been shown to improve the network throughput, by allowing nodes that overhear the transmission and closer to the destination to participate in forwarding the packet, i.e., in forwarder list. In wireless networks, various factors, like fading, interference, and multi-path effects, can lead to temporary heavy packet losses in a pre-selected path The nodes in forwarder list are prioritized and the lower priority forwarder will discard the packet if the packet has been forwarded by a higher priority forwarder. One challenging problem is to select and prioritize forwarder list such that a certain network performance is optimized. The main focus is on selecting and prioritizing forwarder list to minimize energy consumptions by all nodes. The study of both cases where the transmission power of each node is fixed or dynamically adjustable. I present an energy efficient opportunistic routing strategy, denoted as EEOR. Here extensive simulations in TOSSIM show that the new implemented protocol EEOR performs better than the well-known ExOR protocol (when adapted in sensor networks) in terms of the energy consumption, the packet loss ratio, the average delivery delay

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Biswa Ranjan Panda , A. Pandian ¹, J. Venkata Subramanian ¹

Affiliations
1 Dept. of MCA, SRM University, Chennai, IN

Abstract

During their lifetime, multihop wireless mesh networks (WMNs) experience frequent link failures caused by channel interference, dynamic obstacles, and/or applications' bandwidth demands. These failures cause severe performance degradation in WMNs or require expensive manual network management for their real-time recovery. This paper presents an autonomous network reconfiguration system (ARS) that enables a multiradio WMN to autonomously recover from local link failures to preserve network performance. By using channel and radio diversities in WMNs, ARS generates necessary changes in local radio and channel assignments in order to recover from failures. Next, based on the thus-generated configuration changes, the system cooperatively reconfigures network settings among local mesh routers. ARS has been implemented and evaluated extensively on our IEEE 802.11-based WMN test-bed as well as through ns2-based simulation. Our evaluation results show that ARS outperforms existing failure-recovery schemes in improving channel-efficiency by more than 90% and in the ability of meeting the applications' bandwidth demands by an average of 200%.

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J. Venkata Subramanian ¹, A. Pandian ¹, M. Manikandan ¹

Affiliations
1 SRM University, Chennai, IN

Abstract

Monitoring system is repeatedly mentioned as one of the main application areas for mobile computing. it is the application of mobile computing technologies for improving communication among moitoring place, home, industrial, organization, in this place using the application .As mobile devices have become part of our like it can integrate more seamlessly to our everyday life. It enables the delivery of mobile video anytime, anywhere by means of mobile devices. it is paper proposed monitoring house by using web camera and we are retrieving content from the web camera to mobile. Here we are using android os mobile .JMF is used for getting the attributes of video and the attributes should be adjustable depends on network speed. A media server is used to fetch that information from web camera, for that we have proposed RTP/RTSP streaming protocol this protocol get the live video from camera to server and server to mobile. By this system we can monitor our house at any time.

Keywords

Mobile Computing, RTP, JMF, Android.

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J. Venkata Subramanian ¹, A. Pandian ¹, R. Manikandan ¹

Affiliations
1 SRM University, Chennai, IN

Abstract

There has been a wide variety of cloud storage services for the file access and sharing, but it has been cost-effective. That makes it as less utile. People are not willing to use it. But as in our project the cloud storage services is offered for the web services such as Gmail and Yahoo! Even for uncharged accounts, this makes people to use it in the highly basis. As e-mail has become the powerful communication in our modern world. We have to provide the basic needs of giving the more security in preventing their mails from being destroyed. So we provide a backup storage or cloud storage for every individual account to access client own mails with our project. We are using the POP3 mail service to retrieve the mails. It is the more secured path to be accessed. A personal storage system leveraging online email service infrastructures would also benefit service providers as it extends their access to valuable customer data in terms of both volumes and variety. The major objective of the project is we have to connect to the mail server with the desired login information. As we are allowing the access for two mail services such as Yahoo and Gmail. The mails which have been accessed in our account can be retrieved in our My Mailbox using the Cloud storage services. As we are forming the personal cloud storage for every e-mail account. It makes easier to retrieve the relevant mails. As the mails are retrieved from our services, it can also be restored to our individual account. This makes it efficient for our web services. The main concern in our project is that, whenever the users or clients have deleted or lost their mails in the main server, it can be viewed here. And we also restrict the spam messages to the inbox. We will only retrieve the relevant mails which is present in the E-mail services with the help of the POP3 protocol.

Keywords

Cloud Storage, POP3 Protocol, Web Services.

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P. Arunkumar ¹, S. Nandhakumar ², A. Pandian ³

Affiliations
1 Department of ECE, Angel College of Engineering and Technology, Tirupur, IN
2 Department of Mechanical Engineering, Angel College of Engineering and Technology, Tirupur, IN
3 Department of EEE, Angel College of Engineering and Technology, Tirupur, IN

Abstract

The elimination of batteries in mobile robots attracts considerable attention in the field of robotics. The process of exclusion of batteries brings up economical reduction in cost, weight,recharging time and total working time of the robots. This system finds a way for the continuous operation of a mobile robot. The present study shows a new trend of drive system for autonomous vehicle operating on a continuous energy supplied with no batteries and wires. In this proposed system, the power transmission is actively done through a high power transmitter antenna coil and a receiver coil embedded in the autonomous vehicle. The drive system of the robot receives the energy from the receiver coil which acquires the energy through wireless from the transmitter coil. From the result of received energy, the designed spy robot has operated wide a distance of 100 cm with out any fluctuations. The efficiency of the energy obtained from the transmitter coil is around 60%. The maximum distance that the energy transmitted is up to 240cm with a fall in output voltage. The obtained result is tabulated.

Keywords

Battery less Operation, Energy Supply For Robots, Robot Drive Systems, Wireless Energy Transfer (WET).

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