Inter-cell interference in spread-spectrum wireless LANs employing handshake protocols

摘要

We consider the performance of infrastructure wireless LANs based on frequency hopping transmission techniques. The service area is partitioned into overlapping cells, and each cell is assigned a distinct signature sequence that is shared by all terminals inside the cell. A sequence of request-to-send/clear-to-send (RTS/CTS) handshaking procedures precedes the transmission of data frames. Though handshake procedures prevent primary interference, the inter-cell interference lasts and may limit the performance. We develop a unified analysis framework for modeling the inter-cell interference and evaluating the performance of FHSS WLANs in the case of a finite number of users, fixed frame lengths and asynchronous frame transmissions.