In this paper, a channel-assignment algorithm at the Access Points (APs) of a Wireless Local Area Network (WLAN) is proposed in order to maximize Signal-to-Interference Ratio (SIR) at the user level. We start with an initial channel assignment based on minimizing the total interference between APs. Based on this assignment, we calculate the SIR for each user. Then, another channel assignment is...

W . ireless local area networks (WLAN s) provide wireless connectivity between PCs, laptops and other equipment in corporate, public and home environments. Today, tens of millions of users rely on shortrange wireless connectivity between computers or automation equipment using WLAN modem gear that complies with well-known Figure 1. Evolution ofWLAN standards. standards such as IEEE 802.11, 802....

We explore the performance boundaries of sub1 GHz Wireless Local Area Networks (WLANs) and summarize the limitations of our proposed narrow-band WLAN system that uses carrier frequencies at 920 MHz with 1 MHz channel bandwidth. While there are several evaluation reports on WLAN testbeds available, no report is available that discusses the boundaries of narrow-band multiple-input multiple-output...

Abstract. Received Signal Strength (RSS) is one of the most useful information used for location estimation in Wireless LAN (WLAN). Most of the proposed WLAN positioning systems obtain RSS from either the Access Point or from the Mobile Device, but there are few researches that make use of the RSS obtained from both Access Points and Mobile Devices to perform location estimation. In this paper,...

Wireless network is widely used in many sectors due to ease of installation, flexibility, mobility, reduced cost-of-ownership, and scalability. WiFi network can be accessed with laptops, mobile phones, cameras, game consoles and many other increasing numbers of consumer electronic gadgets. Wireless Local Area Network (WLAN) technology has changed the way people communicate and share information...

This paper presents a simulation study of an IEEE 802.11b wireless LAN (WLAN) used as a classroom area network. The simulation is conducted using OPNET Modeler 9.1. The first part of the paper discusses parameterization and validation of the simulation model, based on empirical measurements in a wireless classroom environment. The second part of the paper presents a simulation study designed to...

The third generation partnership project (3GPP) has addressed the feasibility of interworking and specified the interworking architecture and security architecture for third generation (3G)-wireless local area network (WLAN), it is developing, system architecture evolution (SAE)/ long term evolution (LTE) architecture, for the next generation mobile communication system. To provide a secure 3G-...

IEEE 802.11 Wireless LAN (WLAN) developed as a simple and cost-effective wireless technology for best effort services, IEEE 802.11 has gained popularity at an unprecedented rate. However, it lacks of the capability to support Quality of Services (QoS) such as multimedia and real-time traffic properly. This paper presents a simple approach to enhance the multimedia real-time performance over the...

The third generation wireless networks and wireless local networks possess complementary characteristics. Recently, there has been significant interest in providing algorithms and specifications that enable their inter-operability. In this paper we propose a novel cross-network, cross-layer algorithm that jointly performs 3G resource allocation and adhoc mode WLAN routing towards effectively in...

The third generation wireless networks and wireless local networks possess complementary characteristics. Recently, there has been significant interest in providing algorithms and specifications that enable their inter-operability. In this paper we propose a novel cross-network, cross-layer algorithm that jointly performs 3G resource allocation and adhoc mode WLAN routing towards effectively in...