The Broadcasting Automata model draws inspiration from a variety of sources such as Ad-Hoc radio networks, cellular automata, neighbourhood sequences and nature, employing many of the same pattern forming methods that can be seen in the superposition of waves and resonance. Algorithms for broadcasting automata model are in the same vain as those encountered in distributed algorithms using a sim...

Cognitive radio is an enabling technology of dynamic spectrum access (DSA) networking. In DSA, unlicensed secondary users can coexist with primary licensed users and can share the radio spectrum opportunistically. Broadcasting is an important networking primitive that is useful for many CRN applications such as control information dissemination, warning notification, etc. Unfortunately, the spo...

Orthogonal Frequency Division Multiplexing (OFDM) is a transmission technique which ensures efficient utilization of the spectrum by allowing overlap of carriers. OFDM is a combination of modulation and multiplexing that is used in the transmission of information and data. Compared with the other wireless transmission techniques like Frequency Division Multiple Access (FDMA), Code Division Mult...

At the heart of our enquiry lies the need for a deeper understanding of the experiential quality of our interactive environment, Radiomap. This easyto-use immersive telematic environment can be used by one or more individuals to listen to live radio stations from all over the world. We interviewed sixteen individuals and employed a Grounded Theory approach to get a better understanding of visit...

A new algorithm for automatic generation of playlists with an inherent sequential order is presented. Based on a start and end song it creates a smooth transition allowing users to discover new songs in a music collection. The approach is based on audio similarity and does not require any kind of meta data. It is evaluated using both objective genre labels and subjective listening tests. Our ap...

The paper reports from a study at a local Swedish radio station informing the design of new IT support. We suggest a prototype application – the NewsMate – with the aim of supporting knowledge sharing and expertise location among the journalists in both office and field situations. The guiding design principles for the NewsMate are evaluated against existing systems and approaches.

The Radio spectrum has always been a scarce resource right from its initial deployment in 1920s. The television spectrum band is poorly utilized in Indian scenario. Also more efficient spectrum usage is possible with the migration from analogue to digital broadcasting. The use of Cognitive Radios allows an efficient use of the available resources so as to solve the problem of spectrum scarcity....

A radio network (RN for short) is a distributed system with no central arbiter, consisting of n radio transceivers, henceforth referred to as stations. We assume that the stations run on batteries and expends power while broadcasting/receiving a data packet. Thus, the most important measure to evaluate protocols on the radio network is the number of awake time slots, in which a station is broad...

Today’s digital TVs can provide advanced functionalities such as DVR, EPG, and PIP. They require simultaneous access to multiple channels using additional hardware resources, which increases the cost. In order to solve this problem, we propose to use wideband software defined radio (SDR) that can demodulate multiple channels on a single radio frontend. Through the SDR, we can obtain multiple ch...