The resource allocation problem is investigated for relay-based multi-user cooperative
Orthogonal Frequency Division Multiple Access (OFDMA) uplink system, considering …

Interference between concurrent transmissions can cause severe performance degradation
in wireless sensor networks (WSNs). While multiple channels available in WSN technology …

This study considers an orthogonal frequency-division multiple-access (OFDMA)-based
multi-user two-way relay network where multiple mobile stations (MSs) communicate with a …

Cognitive Radio (CR) is an attractive technology to deal with current spectrum scarcity
problem, while cooperative relay can make distributed receivers benefit from spatial diversity …

Cooperative communication (CC) can offer high channel capacity and reliability in an
efficient and low-cost way by forming a virtual antenna array among single-antenna nodes …

The dramatic growth of mobile multimedia communications imposes new requirements on
quality-of-service and energy efficiency in wireless networks. In this paper, we study the …

This paper addresses a weighted sum rate (WSR) maximization problem for downlink
OFDMA aided by a decode-and-forward (DF) relay under a total power constraint. A novel …

We consider the problem of jointly optimizing channel pairing, channel-user assignment,
and power allocation, to maximize the weighted sum-rate, in a single-relay cooperative …

This paper develops a sum-power minimized resource allocation (RA) algorithm subject to a
sum-rate constraint for cooperative orthogonal frequency division modulation (OFDM) …

A limited-feedback-based dynamic resource allocation algorithm is proposed for a relay
cooperative network with orthogonal frequency-division-multiplexing (OFDM) modulation. A …