@gohan LEACH works like this -> the head nodes are choosen, normal nodes connect to them creating clusters. The normal nodes have special "time slots" (TDMA). Normal nodes transmit data in time that was set for them by head nodes. So for the time where nobody is transmiting - the antenas are turned off to save the energy. It is all mostly based on synchronization. After this step another group of heads nodes are choosen.... It may be - I also can check it and send you my observation. The "repeates" like you call them - they are choosen in every round - differend sensor - so the use of the energy is balanced. If the "repeater" die in one round in next round someone else will take his place.... My project is to create a wirelss sensor network that is created from cheap nodes - to observe enviroment... Implementation - could be by plane - so we will not know where they really are but only know the region - they will create a grid and try to gather efficiently information... If they die we just drop another group of sensors - for example to gather a information about fire in forests....

@gohan Ok that make my work easier. Thanks for your reply.

@Anticimex Yes that is correct. I just want to change drivers and sensors to be phisically the same - but implement rounds, gathering informations in different clusters, and add changing functions of nodes - in one round they are cluster head nodes in another a normal node....
Yes I understand. I just want to make LEACH phisical - because most of research is about simulations, and many people are creating garbage articles about it...
If I may ask you what harware would you propose?

@AWI Some function of mySensors are very similar - like they are hierarhical. Tell me - is there is a phisical difference between nodes and reapeting nodes? Or is this only "software"?

Ok... I only have two question

-Can you guide me where I can find the desription how you network works? (a more detail specification)
-Can mysensors be change at low level or is this just like - you can gather information but the network will work in a specific way? Like Zigbee....

Best regards,
Sebastian

Hi, thank you for your reply. On this stage radio/frequency, speed and range is not so important. First I just want to teach myself how to implement it on hardware - to see it working - then I would made a real working prototype with a knowledge that I acquire. Is this possible on your hardware to create a Hierarchical wireless sensor network or if not could you advise me something where I can find tech to do this?

Best regards,
Sebastian

Hi, this is my first post here... For many months I have developed my version of LEACH protocol and in simulation it looks great. Now I would like to test it using hardware... I am not a engineer, so hardware is not my strong side... I am asking if somebody can dircect me what would be the best thing to use to implement my solution... What should I buy - that will not be limited only for creating a Zigbee or a mesh network. I want to create a Hierarchical wireless sensor network based on LEACH.

I would be very grateful.
Sebastian