Which among the following layer operation is similar to that of spectrum sharing?(a) Physical(b) Data-link(c) Network(d) TransportThe question was posed to me by my college director while I was bunking the class.Query is from Next Generation Wireless Network in division Next Generation Wireless Network of Cognitive Radio

Which among the following layer operation is similar to that of spectr

1.	Which among the following layer operation is similar to that of spectrum sharing?(a) Physical(b) Data-link(c) Network(d) TransportThe question was posed to me by my college director while I was bunking the class.Query is from Next Generation Wireless Network in division Next Generation Wireless Network of Cognitive Radio
Answer» The correct option is (b) Data-link The explanation: The data link LAYER particularly the MAC PORTION is responsible for COLLISION avoidance. Likewise, spectrum SHARING is responsible for avoiding collision between licensed and unlicensed users of the licensed spectrum BAND as well as for avoiding collision among xG users in the unlicensed band.

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