Overflow probability in shared cell switched buffers

The ubiquity of the cell switching technique is a clear indication of its c ontinued importance for the future of telecommunications worldwide, The per formance of shared buffers in cell switches provides substantial improvemen t over switches with separate output buffers. The conventional approach to shared buffer analysis is numerical convolution; however recent work provid es an analytical solution based on the Chernoff bound. In this letter we de velop a new closed-form expression for the cell loss probability in the sha red buffer that offers superior accuracy, enhanced simplicity, and better g enerality.