We study the performance of the IEEE 802.11 protocol. We
present an extension of a methodology for the collocated
one-hop case which allows the incorporation of channel
errors. The results closely agree with simulation results.
A delay analysis is also presented. We also present an
extension of this methodology to the multi-hop case with
non-collocated nodes. The approach uses specific topology
dependent relations. Specific results are presented for
the ring and mesh topologies, and compared against
simulation results.