Vytas Kezys

Learn More
In this paper we consider a set of portable stations which communicate with a basestation equipped with a smart antenna operating in multibeam packet-switched SDMA mode. We assume that the system operates using time division du-plexing (TDD) and focus on the problem of access to the stations by the basestation in the forward link direction. A polling(More)
— In this paper we consider vertical handoff for dual-mode (DM) cellular/WLAN handsets. When the handset roams out of WLAN coverage, the DM's cellular interface is used to maintain the call by anchoring it through a PSTN gateway/PBX. Soft handoff can be achieved in this case if the gateway supports basic conference bridging, since a new leg of the call can(More)
Parasitic antennas are much lower in cost and complexity than conventional smart antennas. For this reason, they may be considered for use at the portable station. In this paper we study the capacity of a space-division-multiple-access (SDMA) system when Ò element switched parasitic antenna arrays (SPAA) are used for this purpose. As in [1], dynamic slot(More)
  • 1