The paper describes the design and evaluation of AdHoc extensions to the IEEE 802.15.3 Medium Access Control (MAC) layer for Wireless Personal Area Networks (WPANs). The proposed protocol allows communication between ad-hoc devices without the intervention of any central entity and, at the same time, ensures bounded delays for isochronous traffic. Ad-hoc communication is made possible without the hidden terminal problem. Features from both IEEE 802.15.3 and IEEE 802.11 standards are used in particular the TDMA structure from 802.15.3 and RTS