LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Priority Access in NOMA-Based Slotted ALOHA for Overload 6G Massive IoT

Photo from wikipedia

This letter proposes a priority access (PA) in non-orthogonal multiple access (NOMA)-based slotted ALOHA (SA) (PA-NOMA-SA) for overload 6G massive Internet of Things (IoT). First, a NOMA-SA is considered, where… Click to show full abstract

This letter proposes a priority access (PA) in non-orthogonal multiple access (NOMA)-based slotted ALOHA (SA) (PA-NOMA-SA) for overload 6G massive Internet of Things (IoT). First, a NOMA-SA is considered, where devices in massive machine-type communication exploit uncoordinated uplink NOMA for packet transmissions in physical layer and SA protocol in medium access control layer. Second, PA is proposed to prioritize emergency devices over regular devices to keep stable throughput at an overload network condition. Each device estimates the traffic of the IoT network via traffic load estimation and adopts an adaptive traffic load scheme to send packets. The PA controls the load of the IoT network above critical traffic load, and it is demonstrated that by appropriately employing priority access, the normalized throughput is enhanced. Last, the lower-bound of normalized throughput is derived to demonstrate the superiority of PA-NOMA-SA over the existing random access protocol.

Keywords: noma; priority access; access noma; iot; access; overload

Journal Title: IEEE Communications Letters
Year Published: 2022

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.