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Optimization Methods for User Admissions and Radio Resource Allocation for Multicasting over High Altitude Platforms (Hardcover)
Loot Price: R2,773
Discovery Miles 27 730
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Optimization Methods for User Admissions and Radio Resource Allocation for Multicasting over High Altitude Platforms (Hardcover)
Series: River Publishers Series in Communications
Expected to ship within 12 - 17 working days
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This book focuses on the issue of optimizing radio resource
allocation (RRA) and user admission control (AC) for multiple
multicasting sessions on a single high altitude platform (HAP) with
multiple antennas on-board. HAPs are quasi-stationary aerial
platforms that carry a wireless communications payload to provide
wireless communications and broadband services. They are meant to
be located in the stratosphere layer of the atmosphere at altitudes
in the range 17-22 km and have the ability to fly on demand to
temporarily or permanently serve regions with unavailable
telecommunications infrastructure. An important requirement that
the book focusses on is the development of an efficient and
effective method for resource allocation and user admissions for
HAPs, especially when it comes to multicasting. Power, frequency,
space (antennas selection) and time (scheduling) are the resources
considered in the problem over an orthogonal frequency division
multiple access (OFDMA) HAP system. Due to the strong dependence of
the total number of users that could join different multicast
groups, on the possible ways we may allocate resources to these
groups, it is of significant importance to consider a joint user to
session assignments and RRA across the groups. From the service
provider's point of view, it would be in its best interest to be
able to admit as many higher priority users as possible, while
satisfying their quality of service requirements. High priority
users could be users subscribed in and paying higher for a service
plan that gives them preference of admittance to receive more
multicast transmissions, compared to those paying for a lower
service plan. Also, the user who tries to join multiple multicast
groups (i.e. receive more than one multicast transmission), would
have preferences for which one he would favor to receive if
resources are not enough to satisfy the QoS requirements. Technical
topics discussed in the book include: - Overview on High Altitude
Platforms, their different types and the recent works in this area
- Radio Resource Allocation and User Admission Control in HAPs -
Multicasting in a Single HAP System: System Model and Mathematical
Formulation - Optimization schemes that are designed to enhance the
performance of a branch and bound technique by taking into account
special mathematical structure in the problem formulation
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