Data slot allocation method in distributed wireless personal area networks

A data slot allocation method for a stream delivery in a distributed wireless personal area network (WPAN) including at least two devices that transfer streams using at least one data slot, the method comprising:

• the at least two devices:
• calculating a number of data slots allocable to each stream, including a new stream, to be transferred;
• and
• relinquishing the data slot allocated to the new stream when the number of the allocable data slots is less than a number of preset data slots,
• wherein the devices generate information comprising a number of required data slots, a number of desired data slots, and a satisfaction of quality of service (QoS), and transmit the generated information, and
• wherein the satisfaction of QoS is calculated from the equation:
• SoQ
• =
• S
• -
• R
• D
• -
• R
• where SoQ denotes a satisfaction of QoS, D denotes a number of desired data slots, R denotes a number of required data slots, and S denotes a number of allocated data slots.