Question

What is spectrum handoff latency?

(a) Spectrum handoff latency is the time taken to switch to a new frequency during handoff

(b) Spectrum handoff latency is the period over which an xG user can use licensed band before handoff

(c) Spectrum handoff latency is the time taken to estimate the path between a current licensed band and a new licensed band

(d) Spectrum handoff latency is the time taken to send handoff information to the spectrum broker

The question was posed to me in examination.

The query is from Next Generation Wireless Network topic in division Next Generation Wireless Network of Cognitive Radio

Answer 1

Correct option is (a) Spectrum handoff latency is the time taken to switch to a new frequency during handoff

For explanation I would say: Depending on the available spectrum, the operational frequency of the radio changes with time. When the radio changes its frequency of operation, the time taken for the new frequency to become operational is called spectrum handoff.