Q: How does 802.11 (b and g at 2.4 GHz) manage interferences from other technologies like Bluetooth and microwave ovens?A: Both 802.11b and 802.11g use a mechanism within the 802.11 standard to determine when the air is idle and can be used to send a frame. This mechanism is called Carrier Sense Multiple Access (CSMA). Using this method, 802.11b/g radios can detect other 802.11b/g frames and energy in the channel on which they are operating. Whenever the air is determined to be in use, CSMA prevents 802.11 radios from transmitting. As microwave ovens, Bluetooth devices, and many cordless phones transmit in the 2.4 GHz frequency, these devices will be detected as energy in the channel when they are transmitting, preventing 802.11b/g access points from sending anything until the competing transmission is done.CSMA is the reason why an 802.11b/g wireless LAN can share the unlicensed spectrum of 2.4 GHz with devices like microwave ovens, Bluetooth and cordless phones. It is important to note that the 802.11 specification itself does not dictate how interference should be managed in a wireless LAN. This function is an add-on to the specification, typically provided within individual wireless LAN vendors’ systems. In most cases, these will detect interference sources and adjust channels on the affected access points to avoid conflict – both with external interference sources and with each other. Related content how-to Doing tricks on the Linux command line Linux tricks can make even the more complicated Linux commands easier, more fun and more rewarding. By Sandra Henry-Stocker Dec 08, 2023 5 mins Linux news TSMC bets on AI chips for revival of growth in semiconductor demand Executives at the chip manufacturer are still optimistic about the revenue potential of AI, as Nvidia and its partners say new GPUs have a lead time of up to 52 weeks. By Sam Reynolds Dec 08, 2023 3 mins CPUs and Processors Technology Industry news End of road for VMware’s end-user computing and security units: Broadcom Broadcom is refocusing VMWare on creating private and hybrid cloud environments for large enterprises and divesting its non-core assets. By Sam Reynolds Dec 08, 2023 3 mins Mergers and Acquisitions news analysis IBM cloud service aims to deliver secure, multicloud connectivity IBM Hybrid Cloud Mesh is a multicloud networking service that includes IT discovery, security, monitoring and traffic-engineering capabilities. By Michael Cooney Dec 07, 2023 3 mins Network Security Cloud Computing Networking Podcasts Videos Resources Events NEWSLETTERS Newsletter Promo Module Test Description for newsletter promo module. Please enter a valid email address Subscribe