Which among the following statements is false about cross-layer design?(a) High quality of service can be provided by exchanging information among all layers of the protocol stack(b) Diverse waveforms are employed for power and modulation process(c) Cross-layer design helps to eliminate channel variations caused by blurring(d) Cross-layer design makes channel connections unpredictableThe question was posed to me in an internship interview.I'd like to ask this question from Next Generation Wireless Network topic in chapter Next Generation Wireless Network of Cognitive Radio

Which among the following statements is false about cross-layer design

1.	Which among the following statements is false about cross-layer design?(a) High quality of service can be provided by exchanging information among all layers of the protocol stack(b) Diverse waveforms are employed for power and modulation process(c) Cross-layer design helps to eliminate channel variations caused by blurring(d) Cross-layer design makes channel connections unpredictableThe question was posed to me in an internship interview.I'd like to ask this question from Next Generation Wireless Network topic in chapter Next Generation Wireless Network of Cognitive Radio
Answer» Correct answer is (d) Cross-layer design makes channel CONNECTIONS unpredictable The explanation: Cross-layer design CREATES diverse waveforms to ESTABLISH predictable connections under the existing channel conditions and medium access control parameters. High quality of service can be provided by exchanging information among all layers of the protocol STACK. Cross-layer design also helps to ACHIEVE higher throughput.

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