In this paper a new topology of flying capacitor based multicell converter with reduced switches has been introduced. Compared with conventional multicell converters (Flying Capacitor Multicell and Stacked Multicell converters), the proposed converter doubles the number of output voltage levels and the RMS of output voltage by canceling the midpoint of DC source while the number of high frequen...

Coordinated multi-point processing at multiple base stations can improve coverage, system throughput, and cell-edge throughput for future cellular systems. In this paper, we study the coordinated reception of transmitted signals at multiple MIMO base stations to exploit cooperative diversity. In particular, we propose to employ cooperative multicell automatic repeat request (ARQ) protocol via b...

Multilevel converters are a very interesting alternative for medium and high power drives. Of these topologies the Multicell group is popularly growing due to its advantages such as modularity and scalability. This paper proposes a new topology of cascaded H bridge Multicell 15 level Inverter which is the mixed form of flying capacitor and cascaded group. This inverter is based on the cascaded ...

In this paper, the spectral efficiency of multipleinput multiple-output (MIMO) systems operating in multicell frequency-flat fading environments is studied, for situations in which co-channel interference is the dominant channel impairment instead of ambient noise. The following detectors are analyzed: a single-cell detector, the joint optimum detector, a group linear minimum-mean-square-error ...

In this paper, the spectral efficiency of multiple-input multiple-output (MIMO) systems operating in multicell frequencyflat fading environments is studied, for situations in which co-channel interference is the dominant channel impairment instead of ambient noise. The following detectors are analyzed: the joint optimum detector, a group linear minimum-meansquare-error (MMSE) detector and its g...

Beamforming-array signal processing is a powerful means of increasing capacity and coverage of the mobile communication networks. It supports the next generation broadband cellular system to efficiently carry populated traffic over a limited spectrum due to its co-channel interference mitigation capability. This paper presents performance comparison of three beamforming methods namely null stee...

In this pair of papers (Part I and Part II in this issue), we investigate the issue of power control and subcarrier assignment in a sectorized two-cell downlink OFDMA system impaired by multicell interference. As recommended for WiMAX, we assume that the first part of the available bandwidth is likely to be reused by different base stations (and is thus subject to multicell interference) and th...