PREDATOR: A Protocol for Ad-hoc and Brokered Dynamic Spectrum Management

If technological trends are any indication, we are coming upon a future where we will have highly-cognitive transmitters and receivers capable of using many different frequencies, transmission powers, modulation schemes and MAC protocols. Future generations of mobile devices will be able to bid for the spectrum that they require from a broker, or will have ways of automatically reducing interference by negotiation with other devices. Despite the many different algorithms and policies that could be used to support this, to the best of our knowledge, there is currently a lack of a unified protocol to allow negotiation of spectrum for brokered and non-brokered environments. The proposed protocol, PREDATOR (protocol for equitable, dynamic allocation of radio spectrum), accommodates both brokered and ad hoc configurations. In this paper, we provide a detailed description of how the protocol works, as well as results from a sample application environment to show its efficacy.

[1]  Dipankar Raychaudhuri,et al.  A spectrum etiquette protocol for efficient coordination of radio devices in unlicensed bands , 2003, 14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003..

[2]  Wei Wang,et al.  List-coloring based channel allocation for open-spectrum wireless networks , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..

[3]  P. Bahl,et al.  DSAP: a protocol for coordinated spectrum access , 2005, First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005..

[4]  Janne Riihijärvi,et al.  Frequency allocation for WLANs using graph colouring techniques , 2005, Second Annual Conference on Wireless On-demand Network Systems and Services.

[5]  Simon Haykin,et al.  Cognitive radio: brain-empowered wireless communications , 2005, IEEE Journal on Selected Areas in Communications.

[6]  Milind M. Buddhikot,et al.  DIMSUMnet: new directions in wireless networking using coordinated dynamic spectrum , 2005, Sixth IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks.

[7]  Abhay Parekh,et al.  Spectrum sharing for unlicensed bands , 2005, IEEE Journal on Selected Areas in Communications.

[8]  Ian F. Akyildiz,et al.  NeXt generation/dynamic spectrum access/cognitive radio wireless networks: A survey , 2006, Comput. Networks.