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Information privacy for Wireless body area network (WBAN) includes the user's physiological parameters. When a user of WBAN system intends to query medical data, the security issue is involved. Ciphertext retrieval technology is an effective way to ensure this confidentiality. However, efficiency and accuracy for data retrieval are challenges under the consideration of the aggregation of medical data...
Wireless sensor networks (WSNs) have been adopted as merely data producers for years. However, the data collected by WSNs can also be used to manage their operation and avoid unnecessary measurements that do not provide any new knowledge about the environment. The benefits are twofold because wireless sensor nodes may save their limited energy resources and also reduce the wireless medium occupancy...
Near Field Communication (NFC) is a set of very short range wireless technologies, typically requiring a distance of few centimetres to initiate connection. NFC allows sharing or exchange small payloads of data between two powered devices in a peer-to-peer fashion within pervasive computing and the Internet of Things environments. The NFC-based applications in the educational domain are still below...
This paper aims to examine the issues related to the Traditional Cisco Laboratory system in particular and evaluate the issues regarding current solutions. This paper reports on an efficient and economical Laboratory system which can be accessed wirelessly by students eliminating the cabling issues and time wastage. The newly proposed Cisco Networking Laboratory is characterized by incorporating Virtual...
Once considered only a limited mean for short-range communication of best-effort traffic, Wi-Fi's roots have speared into way farther lands. Voice-over-Wi-Fi (VoWiFi) is an alternative data-driven IP-based dialing service for indoor users with poor cellular coverage. The recent rollout of iPhone6+ running IOS8 with novel Wi-Fi dialing feature spurred several operators around the world to invest on...
This paper introduces a new kind of data hub that is used for evaluation experiments of electrical devices. The hubs not only bridge the real-time data flow between on-site experimental equipment to central servers, but also solve the problem of data normalization. The design of the hub also considers the security issues and data protection in power grid internal network. According to the result of...
Free open wireless Internet access is a complimentary Wi-Fi service offered by most coffee shops, fast food restaurants and airports to their customers. For ease of access, these Wi-Fi networks are inherently insecure where no authentication/ encryption is used to protect customers wireless data. An attacker can easily deceive a wireless customer (WC) by setting up a rogue access point (RAP) impersonating...
In recent years, the proliferation of wireless devices has contributed to the emergence of new set of applications termed as Location Based Services (LBS). LBS provide privileges to mobile users based on their proximity to a facility. In order to gain benefits, users may lie or falsely claim their location. Hence, it is essential to verify the legitimacy of users. In this paper, we propose our novel...
Wireless multi-hop networks are scalable in that devices can easily connect to the network. Such scalability is also required in IoT. However, wireless multi-hop network mostly suffers from high probability of transmission failure due to interference, and nodes connected to the network often experience connection loss and subsequent segment loss which node mobility and routing update incur. Due to...
With the recent roll-out of 100 Gbit Ethernet technology for high-performance computing applications and the technology for 100 Gbit wireless communication emerging on the horizon, it is just a matter of time until non-high performance computing applications will have to utilize these data rates. Since 10 Gbit/s protocol processing is already challenging for current server machines and simply upscaling...
In this paper, we present and implement a low-cost yet effective architecture that enables dynamic spectrum access (DSA) for any type of network. Our intention is to break the cost-scalability barrier and show that a complete system level solution for a database-assisted DSA system can be implemented with standard servers and inexpensive software configurable RF chips, thereby achieving economics...
Smart Parking Sensor Network project aims to develop a low cost sensor based parking system to map the usage of parking areas. This system consists of sensor nodes which can detect the occupancy of parking space; relay nodes to communicate between sensor nodes and the server; server application to get data from the relay nodes and send data to mobile application; and a mobile application to display...
In recent years, wireless local area networks (WLANs) have attracted attention for use as communication infrastructure that is robust against the effects of a disaster. Telephone lines cannot be used because of congestion accompanying rapidly increased demand after a disaster. Because WLANs can be used in such cases, WLAN is effective for infrastructure during times of disaster. An important difficulty...
With the huge advances in the field of wireless communication technologies and the availability of large volume of data on customers, it becomes imperative to develop a system that can be used in shopping center to make shopping more enjoyable and efficient for the customer and the monitoring real-time easier for the store's management. A Geomarketing system based on Bluetooth Low Energy (BLE) is...
With the proliferation of hand-held devices in recent years, wireless video streaming has become an extremely popular application. Internet video streaming to mobile devices, however, faces several challenges, such as unstable connections, long latency, and high jitter. Bitrate adaptive streaming and video transcoding are widely used to overcome such problems. However, there are still several shortcomings...
Anchor-free indoor localization technique is very attractive in disaster relief applications because it does not need any anchors. However, the existing anchor-free localization methods have limited performance since they do not consider positioning error from indoor walls and high mobility of nodes. In this paper, we propose an RSSI-based indoor anchor-free localization scheme, which utilizes pre-surveyed...
Latest research in smart grid communications has advocated the aggregation of multiple traffic flows in order to achieve an improved throughput. While aggregation improves the overall throughput, the individual flows still suffer from unfair throughput performance. As a result, the enablers for time sensitive smart grid services such as load-shedding that require a timely report of data are the most...
Coded caching is a technique that receives much attention in the network literature, since it is able to achieve significant gains compared to the conventional uncoded caching schemes. In this paper, we first identify a family of placement and delivery schemes. Then we derive a lower bound on the average rate for the identified schemes. Based on the clue in deriving the lower bound, a new delivery...
The problem of the centralized caching is studied in a two-layer network. The first layer of the network is constructed by a server and K1 helpers, and the second layer consists of K1 orthogonal sub-networks, each of which contains a helper and K2 users. The pioneer caching design in the two-layer network is to directly apply the Maddah-Ali & Niesen (MAU) centralized caching [1] into individual...
Software Defined Networking (SDN) is a recent paradigm that emerged in the networking community, as a need for mitigating the limitations proven by traditional networks. It was introduced, in the beginning, in campus networks and then in data centers, but the trend is to encapsulate SDN in all the aspects of the network, from optical transport to wireless transport and even Internet exchange points...
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