Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...

Developments in new frequency bands for wireless communications make a broadband channel for new services possible. Great effort has been made researching and developing broadband wireless communication in the 60-GHz millimeterwave band since the early 1990s. In this paper, we design an ATM (asynchronous transfer mode)-based indoor millimeterwave wireless local area network (WLAN) that supports...

In wireless sensor networks (WSN), individual sensor nodes are inherently unreliable and have very limited capabilities to ensure real-time guarantees. In fact, one of the most predominant limitations in wireless sensor networks is energy consumption, which hinders the capacity of the network to provide real-time guarantees (e.g. low duty-cycles, low transmission range). Many approaches have be...

Asaneffective technique for combating multipath fading and for high data rate transmission over wireless channels, orthogonal frequency division multiplexing (OFDM) is extensively used in wireless local area network (WLAN) systems to support high-performance bandwidthefficientmultimedia services. In this paper, a robust channel estimation scheme is proposed for the OFDM-basedWLAN systems with i...

Present information systems studies focus on technology from developed countries. Little is known about the standardization of indigenous technology in the developing world. Drawing upon actornetwork theory, this paper investigates China’s experience of developing and deploying wireless local-area network (WLAN) standards. We demonstrate that counter-network is a useful concept to analyze the m...

Internet of Things (IOT) applications are being widely deployed in many industrial and social fields, and guarantee of the safety of IOT related data transmission is the key for successful IOT related businesses. Our study provides a new way to secure the data transmission of the Wireless Local Area Network (WLAN) related IOT applications. The WLAN-based IOT application is mainly composed of WL...

With the rapid proliferation of broadband wireless services, it is of paramount importance to understand how fast data can be sent through a wireless local area network (WLAN). Thanks to a large body of research following the seminal work of Bianchi, WLAN throughput under saturated traffic condition has been well understood. By contrast, prior investigations on throughput performance under unsa...

Wireless Communications is one of the fastest growing segments in the communications industry. Wireless Network is the network that facilitates communication among two or more computers connected through the standard network protocols, without network cabling. Generally, the Wireless Network is termed as Wireless Local Area Networks (WLAN). A WLAN is a collection of network components connected...

The present third generation (3G) wireless technology can provide data oriented applications. However, the bit rate is limited to around 2 Mbps with limited mobility. Today, more applications demand high data rate and reasonable mobility. Therefore, by integrating 3G cellular system and wireless local area network (WLAN), there is a potential to push the data rate higher. This integration means...

The third-generation (3G) mobile communication systems provide great coverage, complete subscriber management and nearly universal roaming. Nevertheless, 3G systems are subject to the low data rates (2Mbps highest for WCDMA). WLAN (Wireless Local Area Network) provides hot spot coverage with high data rates (reaches 54Mbps while 802.11 a/g), but is subject to short range (reaches 100m the furth...