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The ROLL working group at IETF is currently designing RPL, the Routing Protocol for Low power and lossy networks. RPL is based on organizing the nodes in a network in one or more directed acyclic graphs(DAGs) rooted at the popular/default destinations. The DAG structure naturally supports multipoint-to-point routing towards the DAG root and point-to-multipoint routing from the root towards the nodes...
The following topics are dealt with: ubiquitous and pervasive computing; wireless sensor networks; multimedia systems; P2P networks; Internet applications; distributed systems; ad hoc networks; security models; privacy models; parallel algorithms; and network protocols.
In case of emergent situation like taking patient in an ambulance, it is important to send essential information by verious environments like the condition of patients or delivery time for hospital. In this paper, Cognitive Wireless Network by Transitional AHP based on Emergency Policy is proposed. The proposal system is expected with cognitive wireless network consisted with multi wireless link and...
In recent years, many accounting scandals have been reported in companies not only in the United States, but also in Japan. The need for Internal Control is growing steadily. In particular, auditing logs are important for Internal Control. Any Internal Control without audits is incomplete. Furthermore, logs are necessary not only for defensive implications, but also as they contain much information...
Peer-to-peer (P2P) systems are in nature fully distributed with no centralized coordinator and objects are autonomously distributed to peers in P2P overlay networks. An acquaintance might hold obsolete, even incorrect information on objects due to the propagation delay of changed information on the objects and faults of peers. Hence, a peer has to collect correct object information only from trustworthy...
In a wireless network environment, many studies have used multi-channel schemes to solve the single channel interference problem. Multi-channel can increase the network capacity. But it raises other problems, e.g., multi-channel hidden terminal problem and how to allocate channels to wireless nodes so that interference problem can be avoided and transmission performance can be significantly improved...
Remote appliance control is an important vision for the smart home. Even in the next few decades, it is inevitable that conversional appliances and smart appliance will coexist together to help people live better. For this reason, this research proposed a remote control model for the conversional appliances to integrate with smart home environment. In this model, a smart home portal combined with...
The Internet is a significant channel for any business. While the favorable circumstances sustained by this phenomenon appear valuable, there is still much argument and cogitation on how to utilize the World Wide Web. The tourism industry, in contract with many other industries is a combination of service providers that are basically categorized with other industries in the national system of accounts...
As an all-IP network provides not only services that have been traditionally provided on the Internet but also many other services, it has a dramatically higher risk than conventional networks that an occurrence of congestion in one service leads to congestion in other services. Unlike conventional networks, an all-IP network should provide not only bandwidth but also processing ability simultaneously...
Low duty cycle operation is a well-known mechanism used for achieving energy efficiency in wireless sensor networks (WSNs). Nodes under this concept work only for a small percentage of time and remain largely inactive to conserve energy. S-MAC, is a popular protocol designed specifically for WSNs with low duty cycle operation. At its inception, S-MAC has been designed for low traffic loads. In this...
In this paper, we propose an energy-efficient data gathering method named ODAS/SS (Overhearing based Data Aggregation using Spatial interpolation with Sleep Scheduling) in Wireless Sensor Networks. ODAS/SS reduces the data traffic using spatial interpolation and overhearing, which is a typical characteristic of wireless communications. In addition, ODAS/SS applies a sleep scheduling mechanism, which...
Dynamic spectrum access in cognitive radio (CR) networks is emerging concept to utilize the scarce spectrum in an efficient manner. CR systems will operate in heterogeneous networks in which efficient use of resources will require control of both transmission rate and power for active CRs. In this paper we propose an algorithm for resource allocation in dynamic spectrum access ad-hoc networks where...
In peer-to-peer (P2P) applications, a group of multiple peer processes (peers) are required to cooperate with each other. In this paper, we discuss a heterogeneous hybrid time group communication (HHT) protocol which takes advantage of the linear time (LT) and physical time (PT) to causally order messages in a scalable heterogeneous group. It depends on accuracy of each physical clock and minimum...
This paper presents a new conceptual framework and practical solution for Customer Relationship Management (CRM) and E-Loyalty programs for cutting edge M-Commerce. CRM has come to the world of technology to help companies maximise technology usage. CRM means disciplined business strategy to create and sustain long-term, profitable customer relationships. To this aim, it must concentrate on customer...
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