The Ultimate Guide to Wireless IoT Network Protocols

Wireless IoT Network Protocols

Below is an extensive, though not exhaustive, list of Internet of Things (IoT) protocols. If you’re evaluating options, this guide offers a clear starting point.

Note: Choose a protocol only after you’ve defined your application’s exact requirements. Compatibility, power budget, range, and ecosystem support should drive the decision, not brand prestige.

Bluetooth

Bluetooth is a global 2.4 GHz personal area network (PAN) enabling short‑range communication for device‑to‑device file transfers, wireless speakers, and headsets.

See also: Bluetooth & ZigBee Comparison For IoT Applications

Bluetooth Low Energy (LE)

Designed for low‑power use, Bluetooth LE stays in sleep mode until a connection is requested. Ideal for wearables, fitness trackers, and health monitors.

See also: Bluetooth Vs. Bluetooth Low Energy: What’s The Difference?

ZigBee

ZigBee operates at 2.4 GHz and forms mesh LANs. Originally targeting building automation, it powers wireless thermostats, lighting, and similar systems.

See also: ZigBee Vs. Bluetooth: A Use Case With Range Calculations

Z-Wave

As a proprietary sub‑GHz mesh protocol, Z‑Wave is common in security, home automation, and lighting control. It relies on a vendor‑specific stack.

See also: Z-Wave Vs. ZigBee

6LoWPAN

6LoWPAN delivers lightweight IP over low‑data‑rate networks, similar to ZigBee but open. It’s frequently used for home and building automation.

See also: 6LoWPAN Range: Use Case Calculations

Thread

Thread is an open standard built on IPv6 and 6LoWPAN, often described as Google’s ZigBee. It shares the 802.15.4 base, allowing shared hardware for both protocols.

Wi‑Fi HaLow (802.11ah)

HaLow is tailored for low‑data‑rate, long‑range sensors and controllers. It offers IoT‑centric capabilities beyond typical Wi‑Fi.

See also: Examining The Future Of WiFi: 802.11ah HaLow, 802.11ad (& Others)

Cellular Protocols

2G (GSM) – legacy TDMA; still seen in ATMs and legacy alarm systems, largely phased out globally.

3G & 4G – early high‑speed cellular standards (IMT‑2000) that power mobile data today. They require continuous power or frequent recharging.

LTE Category 0, 1 & 3 – lower speed classes consume less power; Cat 1 and 0 are typical for IoT. For details, see the Radio‑Electronics article.

LTE‑M1 (LTE Cat 20) – the first cellular protocol engineered for IoT. Though not widely deployed yet, it promises low power with minimal infrastructure changes.

NB‑IoT – Narrowband IoT offers low‑power cellular connectivity via DSSS modulation. Key vendors include Huawei, Ericsson, and Qualcomm.

5G – Upcoming high‑throughput network; expected to support IoT in the next five years, though power and cost considerations remain.

Near‑Field Technologies

NFC – Near‑field communication enables contactless payments and close‑range data exchange.

RFID – Consists of active and passive tags; passive RFID generates power from an external field, ideal for logistics and asset tracking.

Low‑Power Wide‑Area Networks (LPWAN)

SigFox – A global operator using DBPSK and GFSK, with infrastructure similar to cellular towers. Ideal for sensor data like parking or water meters.

See also: What Is SigFox?

LoRaWAN – MAC layer protocol based on Semtech’s LoRa PHY. LoRa (PHY) and LoRaWAN (MAC) are distinct but often conflated.

Ingenu (RPMA) – Random Phase Multiple Access uses DSSS, offering a low‑power alternative. Formerly OnRamp, it now targets broader IoT markets.

Weightless-N – Ultra‑narrowband, similar to SigFox, utilizing differential BPSK in narrow channels for uplink sensor data.

Weightless-P – Latest Weightless offering with two‑way communication and QoS tiers.

Weightless-W – An open standard leveraging TV white space. Theoretically attractive but practically challenging.

See also: What Is Weightless?

Other Proprietary Mesh & Low‑Power Protocols

ANT & ANT+ – Samsung‑derived radios enabling mesh networking on existing hardware, similar to Bluetooth LE.

DigiMesh – A proprietary mesh system; compare with ZigBee in the accompanying white paper.

MiWi – Microchip’s short‑range network protocol aimed at rapid product development.

EnOcean – Designed for energy harvesting; excels in smart‑home lighting and building automation.

Dash7 – Open‑source protocol with significant RFID contract from the U.S. Department of Defense.

WirelessHART – Builds on the HART Communication Protocol; recognized as the first international open wireless standard in industry.

Questions?

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