Combined with space-time coding, the orthogonal frequency division multiplexing (OFDM) system explores space diversity. It is a potential scheme to offer spectral efficiency and robust high data rate transmissions over frequency-selective fading channel. However, space-time coding impairs the system ability to suppress interferences as the signals transmitted from two transmit antennas are supe...

3 Generation Partnership Project Long Term Evolution (3GPP-LTE) is focusing towards aggressive frequency reuse i.e. reuse of 1 so that we can get maximum number (all available spectrum) within a cell. Now, the major hindrance is co-channel interference which increases dramatically due to nearby adjacent co-channel cell and most especially for cell edge users. Traditional frequency reuse concept...

Coordinated multi-point transmission and reception (CoMP) is introduced in LTE-A to mitigate co-channel interference and improve the cell-edge user experience. In this paper we propose a joint transmission scheme for LTE-CoMP and we enhance the performance of CoMP with two techniques: 1dynamic MIMO cell selection and 2closed loop MIMO with global precoding matrix selection. A cell-edge user sel...

Frequency intersystem interference is a phenomenon caused by coexistence of multiple wireless systems in same or adjacent areas. Consequently, frequency sharing studies play a very important rule in order to use limited spectrum resources efficiently. Because an International Mobile Telecommunication-Advanced (IMT-Advanced) systems are going to use 3500 MHz according to World Radiocommunication...

Coexistence of various wireless systems may cause frequency intersystem interference problems. Consequently, frequency sharing studies play a very important task in order to use limited spectrum resources efficiently. Because an International Mobile Telecommunication-Advanced (IMT-Advanced) systems are going to use 3500 MHz according to World Radiocommunication Conferences 2007 (WRC-07) decisio...

A lattice-ladder adaptive decorrelation filtering (ADF) algorithm is proposed with the aim of developing a more efficient co-channel speech separation system. It is shown that based on the joint forward and backward linear predictions, a lattice-ladder structure can be derived for ADF. Experimental results show that the proposed algorithm is effective in reducing cross-interference between co-c...

of Long Term Evolution (LTE) for indoor coverage extension. Heterogeneous networks in which femto and pico-cells are overlaid onto macro-cells are extensively discussed. In order to maintain reliable service of macro-cells, it is important to mitigate destructive femto-femto (co-channel) and femto-macro (adjacent or cross channel) cell interferences respectively. This paper presents the perform...

This paper describes an adaptive space-time receiver with joint channel and data estimation (JCD) to combat time-varying multipath channels in the presence of undesired co-channel interference (CCI). The receiver uses a colored Gaussian metric in the sequence detection to suppress the CCI. The proposed scheme also uses the knowledge of the transmit filter for improved channel estimation to enha...