Wireless protocols comparison

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The purpose of this Wiki page is to educate users on the different capabilities and costs of TI's wireless protocols. There is plenty of detailed information available on each of these protocols, and links will be provided. But the primary purpose here is to enable the user to make an informed decision on which one is most likely to fit their application.

Topologies

The protocols discussed here use one or more of the following topologies:

Peer to Peer

P2p.jpg

D = End Device


Star

Star.jpg 

D = End Device

AP = Access Point


Star with Repeater(s)

Starr.jpg 

D = End Device

RE = Repeater

AP = Access Point


Mesh

Mesh.jpg 

SimpliciTI

SimpliciTI was created to provide users with a simple, easy to use protocol for peer to peer, star and star with repeater(s) network topologies. Well suited for networks with 2 to about 30 nodes. End Devices can sleep and the data rate is about 100kb/s.

Pros

  • Versatile RF interface. Operates on <1GHz and 2.4GHz radios
  • Very low complexity. Simple API interface
  • Frequency agility
  • Acknowledgements available


  • Open source code
  • AES-128 security (depending on part selected)

Cons

  • Proprietary protocol, not based on any standard.
  • Not interoperable with 3rd parties

Compatible Hardware

  • CC1101, CC111x (1GHz) + MSP430
  • CC2500, CC2520 (2.4GHz) + MSP430
  • CC2430, CC251x, CC2530 (2.4GHz) SoC

Costs

  • <8K code size
  • No license or fees

More Information


TI-MAC

TI-MAC is the basis for RemoTI and ZigBee networks. Both peer to peer and star networks are supported. Star networks support both beaconed and non-beaconed modes. In non-beaconed mode, end devices can sleep. In beaconed mode, all devices can sleep. Well suited for networks with 2 to about 100 nodes. Data rate is around 100 kb/s.

Pros

  • Based on IEEE 802.15.4
  • Uses DSSS (Direct Sequence Spread Spectrum)
  • Low complexity
  • Interoperability possible with 3rd parties
  • AES-128 security

Cons

  • Channel selections and modulation limited to IEEE 802.15.4 specifications

Compatible Hardware

  • CC2420/CC2520 (2.4GHz) + MSP430
  • CC2430/1, CC2530 (2.4GHz) SoC

Costs

More Information


RemoTI

RemoTI is a protocol used primarily to facilitate RF remote controls for consumer electronics in the audio/visual marketplace. Off the shelf solutions for the hardware/software design are available. Suited for networks with 2 to 10 nodes. Netowrk is star topology, but connections are made peer to peer.

Pros

  • Based on IEEE 802.15.4
  • Uses DSSS (Direct Sequence Spread Spectrum) 
  • Moderate complexity
  • Frequency agility
  • Interoperability possible with 3rd parties
  • AES-128 security

Cons

  • Narrow market focus. Not well suited for uses other than remote controls 

Compatible Hardware

  • Need data 

Costs

  • about 64K code size
  • ???? license or fees
  • ???? IEEE addresses

More Information


ZigBee

ZigBee is a higly capable mesh networking solution based on the IEEE 802.15.4 standard. ZigBee mesh networking is self-forming, self-healing and very robust. Sleeping End Devices are supported. Well suited for networks containing up to hundreds of nodes. Data rate is about 100 kb/s

Pros

  • Large mesh network capable with many features
  • Application level acknowledgements available
  • Multiple types available (2006, 2007 and PRO)
  • Interoperable with 3rd parties
  • Large 3rd party support (Sniffers, Commissioning, etc)
  • Z-Accel Netowrk Processor available

Cons

  • Highest complexity
  • Highest cost

Compatible Hardware

  • CC2420/CC2520 (2.4GHz) + MSP430
  • CC2430/1, CC2530 (2.4GHz) SoC

Costs

  • 75K+ code size
  • ZigBee membership required for commercial use (http://www.zigbee.org)
  • Compliance testing required
  • IEEE addresses required

More Information