Providing seamless service to meet customers' demand is
the mark of successful wireless communication systems in
heterogeneous environments. With ad hoc relay nodes
introduced in WLANs can enhance the data transmission
capacity and improves network coverage. The Ad Hoc
networking scheme based on IEEE802.15.4 standards is
proposed to achieve the above goal. The designed network
layer based on IEEE802.15.4 can provide data service and
management service function interface. While the research
of WLAN multi-hop ad Hoc network technology is still in
the initial stage, mixed network capacity, user identity
authentication ,security, QoS security are needed to be
further studied.