Competitive Spectrum Management with Incomplete Information

This paper studies an interference interaction (game) between selfish and independent wireless communication systems in the same frequency band. Each system (player) has incomplete information about the other player's channel conditions. A trivial Nash equilibrium point in this game is where players mutually full spread (FS) their transmit spectrum and interfere with each other. This point may lead to poor spectrum utilization from a global network point of view and even for each user individually. In this paper, we provide a closed form expression for a non pure-FS epsilon-Nash equilibrium point; i.e., an equilibrium point where players choose FDM for some channel realizations and FS for the others. We show that operating in this non pure-FS epsilon-Nash equilibrium point increases each user's throughput and therefore improves the spectrum utilization, and demonstrate that this performance gain can be substantial. Finally, important insights are provided into the behaviour of selfish and rational wireless users as a function of the channel parameters such as fading probabilities, the interference-to-signal ratio

Economic aspects of spectrum management

Problems associated with the allocation of the radio frequency spectrum are addressed. It is observed that the current method very likely does not allocate the resource to those most valuing its use. Ecomonic criteria by which the effectiveness of resource allocation schemes can be judged are set forth and some thoughts on traditional objections to implementation of market characteristics into frequency allocation are offered. The problem of dividing orbit and spectrum between two satellite services sharing the same band but having significantly different system characteristics is discussed. The problem is compounded by the likelihood that one service will commence operation much sooner than the other. Some alternative schemes are offered that, within proper international constraints, could achieve a desired flexibility in the division of orbit and frequency between the two services domestically over the next several years

Over-Booking Approach for Dynamic Spectrum Management

An over-booking based dynamic spectrum management (DSM) scheme is conceived for improving the attainable spectral efficiency. All secondary users (SU) will be categorized into different classes and they borrow spectral resources from the primary users (PU) before data transmission. Under the risk-based policy model, the effects of both booking cancellations and ’no-show’ reservations are analyzed. Assuming that the booking demands obey an inhomogeneous Poisson process, we derive the optimal number of excess reservations, while minimizing the total compensation costs. Algorithms are developed for determining the capacity allocation dedicated to each SU class, whilst denying those resource allocations, which would lead to congested bookings

Spectrum Management and Broadcasting: Current Issues

Broadcasting policy has traditionally been supported by a 'command-and-control' system of assigning frequencies for terrestrial transmission, but this link is being eroded by the emergence of other technologies – cable, satellite, IPTV, mobile broadcasting - and by the emergence of multi-channel television, which is facilitated by digital terrestrial television. The switch off of analogue terrestrial transmission is being achieved through significant government intervention, but with diverse intentions relating to the use of the freed spectrum. It is argued, however, that the trend to liberalise spectrum policy is strong, and that this will promote the liberalisation of broadcasting.spectrum management; broadcasting policy; digital switchover

Reviewing the Philippines' Spectrum Management Policy

In light of the latest developments in information and communication technology such as the advent of the 3G technology, it is important that the issuance of licenses to companies that may be assigned specific uses or allocations of frequency bands in a spectrum range be made in the most efficient and transparent manner. This Policy Notes examines alternative modes of allocation and assesses their implications and usefulness to the Philippine ICT market situation.telecommunications, information and communications technology (ICT), spectrum management, spectrum management policy, 3G technology