As wireless networks evolve to orthogonal frequency division multiple access (OFDMA) systems, inter-cell interference control becomes a critical issue in radio resource management. The allocation of the same channels in neighbor cells cause inter-cell interference, so the channel allocation needs to be taken carefully to lower the inter-cell interference. For channel allocation, we consider two...

To meet the ever-increasing demands of mobile traffic, femtocells are considered as one of the promising solutions. In this paper, we study a sensing-based resource allocation scenario in cognitive femtocell networks and present an efficient distributed imperfect-spectrum-sensing-based resource allocation (DIRA) algorithm while considering the channel uncertainty to maximize the total data rate...

Long-range wide-area network (LoRaWAN) is one of the most promising IoT technologies that are widely adopted in low-power networks (LPWANs). LoRaWAN faces scalability issues due to a large number nodes connected same gateway and sharing channel. Therefore, LoRa seek achieve two main objectives: 1) successful delivery rate 2) efficient energy consumption. This article proposes novel game-theoret...

This work presents blind joint interference suppression and power allocation algorithms for DS-CDMA networks with multiple relays and decode and forward protocols. A scheme for joint allocation of power levels across the relays subject to group-based power constraints and the design of linear receivers for interference suppression is proposed. A code-constrained constant modulus (CCM) design fo...

This work considers the performance of the downlink channel of MIMO cellular networks serving multiple users with different statistical QoS requirements. The paper proposes resource allocation algorithms that aim to optimize the system performance over the sum of the optimal user utility functions by employing the effective capacity theory. Proportionally fair resource allocation among the user...

In this paper the problem of optimal subcarrier and power allocation for sum rate maximization in the uplink of an OFDMA system is considered, under the assumption that each user allocates equal transmit power to an assigned subset of subcarriers. Such On-Off power allocation requires very limited feedback from the base station to the users. Furthermore the intertwined power/subcarrier allocati...