As the requirement of spectrum is increasing with the advent of new technologies, cognitive radio networks have got tremendous attraction in recent days. Since the concept of cognitive radio is new, there are a few number of cognitive radio platforms have been introduced in the literature. CORAL is WiFi like cognitive radio platform developed by communication research centre (CRC) operated in l...

Nowadays WiFi services is available in many public places to accesses the information. Most of use Wifi Protected Access 2 (WPA2) security. This protocol uses a 4-way handshake mechanism for authentication process, but there weakness by using that possible re-install key (KRACK). can be used attackers hold up communications so enter network. study, KRACK analysis was carried out on wpa_supplica...

In this paper, we establish our system model over the sensor network addressing contradictory issue caused by mutual authentication and privacy protection of an end-user. Based on the system model, we propose the protocol for a location-aware and privacy-preserving approach for child-care and safety over wireless sensor networks. Although we illustrate our protocol over the sensor network, our ...

Wireless Fidelity (WiFi) and Wireless microphone are assumed to operate on adjacent channels in TV White Spaces(TVWS). The Scenario of WiFi potentially interfering with Wireless microphone is analyzed through Minimum Coupling Loss (MCL) and Spectrum Engineering Advanced Monte Carlo Analysis Tool (SEAMCAT) based on the Monte-Carlo simulation method. In the case of single WiFi interfering with Wi...

We present WiFiNet— a system to detect, localize, and quantify the interference impact of various non-WiFi interference sources on WiFi traffic using commodity WiFi hardware alone. While there are numerous specialized solutions today that can detect the presence of non-WiFi devices in the unlicensed spectrum, the unique aspects of WiFiNet are four-fold: First, WiFiNet quantifies the actual inte...

The growth of smart cities is fueled by the vast rise in wireless gadgets and uninterrupted connectivity. WiFi dominant technology, enabling Internet-of-Things (IoT) connectivity due to its ubiquitous access points low deployment cost. However, city applications offer a wide range services with different quality-of-service (QoS) demands. This paper addresses packet delivery latency as one QoS m...

WiFi connectivity is a necessity as most of the mobile devices nowadays are coming with built-in WiFi adaptors. WiFi enables your electronic gadgets to ‘talk’ to other gadgets and to control and being controlled by other gadgets via Internet without complicated cabling systems. You can use your mobile phone to talk, to download, to control your TV, home security camera or even to open the door ...

Modern mobile phones and laptops are equipped with multiple wireless communication interfaces, such as WiFi and Bluetooth (BT), enabling the creation of ad-hoc networks. These interfaces significantly differ from one another in their power requirements, transmission range, bandwidth, etc. For example, BT is an order of magnitude more power efficient than WiFi, but its transmission range is an o...

The ISM spectrum is becoming increasingly populated by emerging wireless networks. Spectrum sharing among the same network of devices can be arbitrated by MAC protocols (e.g., CSMA), but the coexistence between heterogeneous networks remains a challenge. The disparate power levels, asynchronous time slots, and incompatible PHY layers of heterogeneous networks severely degrade the effectiveness ...

With wireless technologies becoming prevalent at the last hop, today’s network operators need to manage WiFi access networks in unison with their wired counterparts. However, the non-uniformity of feature sets in existing solutions and the lack of programmability makes this a challenging task. This paper proposes Odin, an SDN-based solution to bridge this gap. With Odin, we make the following c...