Improved lower bounds on the symbol error probability for ISI channels

作     者：Moqvist, P Aulin, T 

作者机构：Chalmers Dept Comp Engn SE-41296 Gothenburg Sweden Ericsson Mobile Data Design AB SE-41266 Gothenburg Sweden 

出 版 物：《IEE PROCEEDINGS-COMMUNICATIONS》 (IEE Proc Commun)

年 卷 期：2000年第147卷第6期

页      面：351-354页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 081001[工学-通信与信息系统] 

主　　题：Lower bound maximum likelihood sequence detection Interference channels Error probability Upper bound trellis search 

摘      要：A lower bound on the symbol error probability obtained with maximum likelihood sequence detection on the intersymbol interference channel is derived. It is recognised that the bound can be substantially improved by considering every possible transmitted sequence and not only the ones generating the well-known d(min)(2). Also, a method is devised which finds the additive components of the bound using a trellis search. It is demonstrated that for many channels, using a truncated upper bound as a lower bound yields incorrect results. This might be the case even if the upper bound is truncated to its first term corresponding to d(min)(2).