Question

How is dynamic spectrum access protocol advantageous for cooperative spectrum sharing?

(a) Central entity is used to lease the spectrum

(b) Sophisticated spectrum sharing algorithms are used to allocate the spectrum

(c) Distributed communication

(d) Reduced communication overhead

I have been asked this question in final exam.

My question is based upon Next Generation Wireless Network topic in division Next Generation Wireless Network of Cognitive Radio

Answer 1

The correct answer is (a) Central entity is used to lease the spectrum

For explanation I would say: The dynamic spectrum access protocol (DSAP) is a centralized protocol where a central entity is used for leasing spectrum to users in a limited geographical area. DSAP consists of clients, DSAP server, and relay for relaying information between the server and the clients that are not in the direct range of the server.