Diakoumis P. Gerakoulis

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— The Orthogonal Frequency Division Multiplexed (OFDM) system introduced here, termed Interference Suppressing OFDM (IS-OFDM), has the capabilities of suppressing narrow-band interference in wide band wireless applications. The IS-OFDM encodes each transmitted symbol in all frequency bins. Each frequency bin will then " contain " all transmitted symbols(More)
The multicarrier orthogonal code division multiplexing (MC-OCDM) introduced here has been designed for very wide bandwidth (VWB) point-to-point and point-to-multipoint transmission. In order to meet VWB transmission requirements, the MC-OCDM design has two components, the basic and the composite. The basic MC-OCDM is a generalized form of the standard(More)
A multicarrier access and routing system has been proposed for use in wireless networks. Users within each cell access a radio port (RP). All RPs are connected to a radio exchange node (REN) which routes the calls or packets. The uplink access is orthogonal multicarrier code-division multiple access (MC-CDMA) and the downlink transmission is multicarrier(More)
This paper provides the network synchronization of an orthogonal CDMA geostationary satellite system for fixed service communications. It includes the synchronization procedures, the system architecture and the performance evaluation. The main objective is to provide network wide synchronization of all uplink orthogonal CDMA transmissions. This is achieved(More)