The random access procedure is a contention‐based synchronisation process specified by
long‐term evolution standards by which uplink signals can arrive at the eNodeB …

The IEEE 802.16 family of standards for nomadic wireless metropolitan area networks
adopts orthogonal frequency-division multiple-access as an air interface. In these systems …

In this letter, we propose a successive multiuser detector (SMUD) for contention based
OFDMA ranging channel compliant to the IEEE 802.16 (WiMAX) standard. A ranging …

Massive MIMO systems, where base stations are equipped with hundreds of antennas, are
an attractive way to handle the rapid growth of data traffic. As the number of users increases …

Massive multiple-input multiple-output (MIMO) systems, where base stations (BSs) are
equipped with hundreds of antennas, are an attractive way to handle the rapid growth of …

In this letter, an initial ranging scheme for orthogonal frequency-division multiple-access
systems is proposed by which users that intend to establish a communication link with the …

A computer center typically faces questions of how to deal with a growing load in the face of
tight financial constraints and with the need for lead time for planning ways to meet the …

An iterative maximum likelihood detection (IMLD) algorithm is proposed for the contention
based orthogonal frequency-division multiple access (OFDMA) initial ranging (IR) process …

In this paper, the problem of cell search for IEEE 802.16 e OFDMA systems is addressed,
which includes two steps: frame detection and cell ID identification. We propose two novel …

Initial uplink synchronization is an integral part of wireless communication systems. It
enables the base station (BS) to detect new subscriber stations (SS) willing to commence …