Which among the following is integrated in IEEE 802.22 Wireless Regional Area Network?(a) Route decision model(b) Back up channel list(c) Interference floor(d) Spectrum decision modelI got this question in an interview for job.My doubt stems from Next Generation Wireless Network topic in division Next Generation Wireless Network of Cognitive Radio

Which among the following is integrated in IEEE 802.22 Wireless Region

1.	Which among the following is integrated in IEEE 802.22 Wireless Regional Area Network?(a) Route decision model(b) Back up channel list(c) Interference floor(d) Spectrum decision modelI got this question in an interview for job.My doubt stems from Next Generation Wireless Network topic in division Next Generation Wireless Network of Cognitive Radio
Answer» The correct option is (b) Back up channel list To elaborate: The most preferred approach for mitigating performance DEGRADATION, DUE to poor channel characteristics, is building a backup channel list. The potential target channels are added to a list. The list is maintained by sharing information between users in the area. It is INTEGRATED in the IEEE 802.22 Wireless REGIONAL Area Network.

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