An ultra-compact dual-band printed antenna is proposed. Connective and concentric double split rings (CCDSR) are used to generate two resonant frequencies in wireless local area network (WLAN) frequency bands. Tuning arms are added to the microstrip fed line, which can be used to tune the upper frequency band. The dimension of this antenna is only 9 × 24 × 1 mm3, much smaller than those reporte...

—As the number of wireless subscribers rapidly increases guaranteeing the quality of services anytime, anywhere, and by any-media becomes indispensable. These services require various networks (such as CDMA2000 and Wireless LAN) to be integrated into IP-based networks, which further require a seamless vertical handoff to 4 th generation wireless networks. This paper presents a seamless vertical...

The ability to communicate within any destination, at any given moment both effectively and efficiently tends to define our success (existence) within not only the world of technology but also the world’s social and economical standpoint. The 802.11 standard had helped emerge the Wireless Local Area Network (WLAN) industry as one of the fastest-growing segments of the communications industry. W...

In this paper, a novel multi-frequency microstrip antenna with complementary ring slot resonator (CRSR) structure that satisfies Bluetooth, worldwide interoperability for microwave access (WiMAX), and wireless local area network (WLAN) applications is proposed. The conventional consists of circular patch at resonance frequency band 2.5 GHz. By loading two CRSR the radiating element, three opera...

Fig. 6: The values for throughput and delay presented here are normalized to 100% of a single superframe. Based on its demand a player can react on the opponents behavior and adapt its scheduling of transmission opportunities to maximize its payoff .. Fig. 8: Only neighbouring stations are in reception range. Since station 1 and station 4 have only one neighbour, it is more likely for them to g...

In this rapid changing world in wireless communication, dual or multiband antenna has been playing a key role for wireless service requirements. Wireless local area network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) have been widely applied in mobile devices such as handheld computers and smart phones. These two techniques have been widely considered as a cost-effective,...

In the past months the deployment of Wireless Local Area Network (WLAN) hot spots has vastly increased in many places world-wide and the IEEE 802.11 standard is playing a more and more important role in future mobile radio networks of the 4th Generation (4G). In order to fulfill the requirements of such 4G networks the WLAN technology has to provide mechanisms for the transport of Quality-of-Se...

This letter presents a new directional dual-band slotted trapezoidal inverted-F antenna (IFA) for indoor Wireless Local Area Network (WLAN) applications. The dual-band performance can be obtained by tuning the lengths of the inner symmetrical trapezoidal slots and the outer trapezoidal arms in a nearly independent manner. The measured results show that the proposed antenna can provide two separ...

In this paper, channel capacity of multiple-input multiple-output wireless local area network (MIMO-WLAN) systems with single co-channel interference (CCI) is calculated. A ray-tracing approach is used to calculate the channel frequency response, which is further used to calculate the corresponding channel capacity. The ability to combat CCI for the MIMO-WLAN simple uniform linear array (ULA) a...

This paper proposes a novel indoor Wireless Local Area Network (WLAN) positioning algorithm by using the Support Vector Machine (SVM) Hyperplane Margin Clustering and Regression (SVMCR). First of all, we rely on the SVM Hyperplane Margin Clustering (SVMC) to reduce the search space of the fingerprint database. Second, we use the Support Vector Regression (SVR) to characterize the relations of t...