How can I build Wireless sensor network using nRF51422

[Alok]

I have about 200-300 sensors, each requiring to send data at around 0.5-1Kbps to a central node (coordinator/master node), what will be the network configuration/topology using nRF51422 (or any other better suited Nordic IC) to send the data of all the sensors to the central node?

[Alok]

Thank you, what kind of throughput numbers is achievable using nRF822 or nRF24LE1?

[ovrebekk]

The throughput depends on the configuration, and if you use ACK's or not, but it is possible to get at least 1.5Mbps throughput when running at an on-air bitrate of 2Mbps. In the nRF24LE1 you will have to disable ACK's to get this high throughput. In the nRF51822 you can get this bitrate by using a larger payload (> 32), or by disabling ACK's.