ed limits based on need, in order to control congestion and, for example, city air condition. Smart objects can measure local driving conditions based on weather or direct measurements from the road, and control speed limits or issue warnings to drivers. Cars can communicate with others and with traffic signs to alert drivers, and train and bus traffic may be optimized based on people present on stations and at stops. Agriculture: Smart objects deployed outdoors in the fields or indoors in greenhouses can measure variables affecting plant growth. These include soil and air moisture lev- els, lighting conditions, and temperatures. The sensors can drive actuators that help plant growth, and alert farmers to problems. The measurement data may also help in estimating crop yields. 6.5.2 Standardization Organizations Working with IoT As the IoT is a global phenomenon, it is understandable that many standardization organizations and industry alliances are interested in the topic. In Table 6.2 we list some of these organizations, including the most relevant from the cellular networks point of view: IETF and 3GPP. However, other organizations also influence this large domain, and hence in this section we will give an overview of what different organizations are working on. In some of the technical areas these organizations complement each other, but in some aspects overlapping and competing technologies are being standardized. These overlaps Future of IPv6 in 3GPP Networks Table 6.2 Some standardization organizations working with IoT Organization Focus Area Cellular access changes to support MTC Network, transport, and application layer protocols M2M device management standards Standards for M2M communications OneM2M Creation of common M2M service layer IPSO Alliance Promotes use of IP for IoT ZigBee Alliance Protocols on top of IEEE 802.15.4 Bluetooth SIG Standards for Bluetooth include domains such as the device management and configuration domain, but also on other domains such as information reporting. The work areas 