Abdol Hamid Aghvami

TL;DR: Numerical results, obtained using the invasive weed optimization algorithm, show that the proposed energy-efficient uplink design not only outperforms other algorithms in terms of energy efficiency while satisfying the QoS requirements, but also performs closer to the optimal design.

TL;DR: A framework for resource allocation in a secondary spectrum access scenario, where a group of cognitive radios access the resources of a primary system, and uses Sequential Quadratic Programming (SQP) to solve the proposed non-linearly constrained CRG optimization problem.

TL;DR: A joint code-division multiple- access/packet-reservation multiple-access (CDMA/PRMA) technique is proposed and investigated as a candidate for an uplink protocol for third generation mobile communication systems.

TL;DR: In this paper, the authors evaluated four handoff priority-oriented channel allocation schemes and compared them with the conventional guard channel-based handover priority oriented channel allocation scheme, and found that some of the channel allocation algorithms studied improved the teletraffic capacity over the nonpriority and conventional guard case.

TL;DR: It is proved that when the input power at each user is uniformly distributed over its transmit antennas, the bounds on the mutual information are asymptotically tight for Gaussian input signals, and this tightness increases when the number of users increases.