In real propagation environment, channel reuse causes co-channel interference which will degrade MIMO channel performance. A Successive Interference Cancellation (SIC) detection algorithm with 64-QAM technique is used to improve the quality of received signal in a high interference environment. Using Concatenating MMSE with SIC equalization, better cancellation gain can be achieved. In this pap...

A wireless network employs some portion of the electromagnetic spectrum to establish communications between the transmitter/receiver network antennas, called TRXs. A certain part of the electromagnetic spectrum is licensed to the company operating the network and is divided into discrete channels. Each TRX must operate through one channel, although whenever two TRXs overlap their coverage areas...

The mitigation of co-channel interference (CCI) and inter-symbol interference (ISI) has been a major area of focus of researchers in wireless communications. An approach of interest separates CCI cancellation and ISI equalization in a slow frequency-selective Rayleigh fading channel into two stages. A space-time filter reduces the CCI, followed by a Viterbi equalizer for ISI equalization. The c...

In cellular communication systems, directional multibeam antennas at cell sites can be used to reduce co-channel interference, increase frequency reuse and improve system capacity. When combined with dynamic channel assignment (DCA), additional improvement is possible. We propose a multibeam scheme using dynamic channel assignment across multiple sectors. A cell is divided into several sectors,...

Due to bandwidth limitations in cellular communications, the same bandwidth is allocated to beams which are isolated spatially. This is known as frequency reuse, and the beams operating at the same frequency are referred as co-channel beams. While this approach allows a large coverage area with limited bandwidth, the co-channel beams have the potential to interfere with each other. This is know...

This paper studies signal detection in wireless networks where the uncertainty is due to the fading channel as well as strong co-channel interference of the same form as that of the desired signal. In particular, unlike for the desired signal, no pilot for the interference signal is available for measuring its fading channel state. Still, the interference is a non-Gaussian process and treating ...

Interference is the major limiting factor when evaluating the performance of cellular radio systems. Sources of interference could be another mobile at the same cell, a call in progress in a neighboring cell or other base stations operating in the same frequency band. Interference on voice channels causes cross talk due to an undesired transmission. On control channels, interference leads to mi...

Sensor networks operating in the 2.4 GHz band often face cross-technology interference from co-located WiFi and Bluetooth devices. To enable effective interference mitigation, a sensor network needs to know the type of interference it is exposed to. However, existing approaches to interference detection are not able to handle multiple concurrent sources of interference. In this paper, we addres...

In organized beam-hopping (OBH) based systems, the organized hopping pattern is changeable according to the distribution of the mobile stations (MS) in the cell. However, the changed beam-hopping patterns may cause severe co-channel interference for the users which are hit by more than one beam. In this paper, we develop an interference situation adaptation scheme for OBH-based systems. The int...