You might want to do some research on how 2.4GHz works before jumping to conclusions.
2.4GHz is a band which covers a wide range of frequencies. Most 2.4Ghz systems 'hop' between multiple different frequencies many times every second. The chance of two Tx's hitting the same frequency at the same time is very low but even if they do it doesn't matter at all because a nano second later they will have 'hopped' to another frequency. The Rx is 'bound' to its Tx so it ignores any other signals anyway.
2.4Ghz is as near to bullet proof as it's reasonably possible to get.
Read this: http://www.3drcforums.com/content.ph...dio-Technology