Figures show that an estimated 50 per cent of all advertising spend is wasted. Advertising agencies are said to be broadly supportive of the move as it could stop traditional "channel-hopping".
Each data packet is transmitted on a different frequency channel, following a pseudo-random hopping sequence determined by the device address of the master device.
在一个由主设备的设备地址决定的伪随机跳频序列的指引下，每一个数据包都经由不同的频率信道来传输。
3
This paper proposes a secure source specific multicast scheme based on multicast channelhopping.