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13	13	2. Alternatively, we can improve the frequency hopping rate significantly by breaking compatibility and interoperability with Wi-Fi devices. In the [wiki:./fast_hopping Fast Hopping Approach], we will employ an 'a priori' known frequency hopping schedule at each WARP v3 node in the network rather than explicitly communicate the intention to hop in a management frame. The key challenge here is ensuring that each device remains synchronized despite sharing no absolute time reference.
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	15	Both of these approaches to frequency hopping only involve simple C code changes to the design; the existing FPGA hardware remains untouched. This tutorial highlights a fundamental design principle behind the Mango 802.11 Reference Design. Since the design is compliant with the 802.11 standard, we can make some changes to the design and still interoperate with commercial Wi-Fi devices. However, we are not beholden to the existing standard. We can radically change the behavior of the design and implement completely custom schemes.