In order to deal with uneven load distribution, mobility load balancing adjusts the handover
region to shift edge users from a hot-spot cell to the less-loaded neighbouring cells …

Relaying is a promising technique in cellular networks for improving system capacity and
coverage. To facilitate the deployment of relays in remote areas without ready access to the …

The deployment of relay stations in OFDMA cellular networks is a promising solution to
provide ubiquitous high-data-rate coverage. However, it makes the resource allocation a …

Due to the tradeoff between capacity and fairness in a wide variety of networks, increasing
one objective may deteriorate the other. This paper investigates the possibility of improving …

This paper studies the subchannel and power allocation problem in the relay-enhanced
downlink orthogonal frequency-division multiple access (OFDMA) systems. The challenges …

An apparatus and method for reduces an overhead caused by an operation transition gap in
a Relay Station (RS) of a relay wireless communication system. The method includes …

This paper addresses a proportional fair resource allocation algorithm for video transmission
in OFDMA relay system. In the algorithm, the trade off between efficiency and fairness in …

In this paper, we study adaptive resource allocation algorithm in multi-relay-enhanced
OFDMA systems and propose new relay selection and subcarrier allocation schemes …

Cooperative diversity methods are used to increase network throughput while considering
fairness. By using these methods in OFDMA relay-enhanced systems, the best transmission …

Resulting from the rapid growth of wireless video services in the recent years, radio resource
is often inadequate in the high data rate communication environment. Under the …