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Boosting Wireless range for JN5168 modules

Question asked by David Ashraf on Sep 21, 2017
Latest reply on Jan 22, 2018 by benjamin chang

I've been trying to make a wireless network using JN5168-001-M00 modules 
but it's obvious that it can't provide more than about 15 meters indoor

My solution is based on using battery powered sleeping end devices that collect sensor data and send to the coordinator on sensor events only to increase battery life 

What I want is to boost node-to-node wireless range to about 40 meters indoor
So I've the following questions:

1- Can this be achieved using jn5168-001-M00 using some API functions ? 

2- If I used a high power module at the coordinator node only and leaving end devices using M00 modules
would that be enough to achieve a good wireless range ?
and if so what other requirements ( API functions/ external antennas  ) should I use with the high power module? 

3- Does discovering and connecting to a network require the node to be closer to the coordinator than it's required in sending normal unicast data ?  
and if so how can I solve the problem of reconnecting to a network after waking from a deep sleep without having to move the node closer to the coordinator ?

4- Is the used stack a parameter in this ? 
I am using Zigbee 3.0 stack 

I hope my question is clear enough and I am hoping for a solution for my problem ASAP