Even thought it has some challenges that require solution before it can get to market, it has many advantages that help it to be realized in the near future. For there is no worldwide uniformity in channelization for TV services, the standard shall accommodate various international TV channel bandwidths of 6, 7 and 8 MHZ. The spectrum where the IEEE 802.22 WRAN will use is already in use by TV services and wireless microphones. This has penalty as interference is unbearable unless a strict compliance is followed on radio emission. The CR technology becomes handy here in solving the interference problem by spectrum sensing.
The main competitive advantages for the IEEE 802.22 WRAN are free access to the spectrum, very favorable propagation characteristics (large area of coverage and better material penetration) which will induce in reduction of cost, . Since this technology is intended for the rural areas which doesn't have a broadband access, there is no question for market.
The main competitive advantages for the IEEE 802.22 WRAN are free access to the spectrum, very favorable propagation characteristics (large area of coverage and better material penetration) which will induce in reduction of cost, . Since this technology is intended for the rural areas which doesn't have a broadband access, there is no question for market.
No comments:
Post a Comment