Beam Forming Impact on The Next Generation WI

BEAM FORMING IMPACT ON THE NEXT GENERATION WI-FI IEEE802.11AY IN MM WAVE FREQUENCY BAND Key Points  IEEE 802.11ad provided high data rates but limited range at 60 GHzfrequency band  802.11ay introduced to achieve 100 Gbps data rates and 300-500m rangethrough:  Increased channel bandwidth (8.64 GHz vs 2.16 GHz in 802.11ad)  Multi-stream transmission  Advanced beamforming  802.11ay can provide wireless backhaul for small cells in 5G heterogeneousnetworks  60 GHz mmWave suffers from high path loss, absorption, poor obstaclepenetration  High gain antenna arrays with beamforming used to compensate path loss  Large number of antenna elements needed for narrow, directional beams  Phase/amplitude of each element controlled for fast, precise beam steering  2D and 3D beamforming algorithms generate directional beams  Beams can be steered to target specific locations/devices  Uniform linear arrays (ULA) and uniform rectangular arrays (URA) analyzed  Increasing antenna elements narrows beamwidth, increases range  URA well-suited for 802.11ay networks to overcome signal blocking Key Highlights  802.11ay's higher bandwidth, multi-stream, and advanced beamformingenables 100 Gbps speeds and longer range  It can provide wireless backhaul for small cells in 5G, replacing costly wiredbackhaul  Beamforming with antenna arrays is essential to overcome 60 GHzpropagation challenges  ULAs and URAs allow flexible beam shaping and steering to optimize signals  Increasing antenna elements boosts directionality and minimizes path losses

 802.11ay and mmWave will be key technologies enabling high data rates infuture wireless networks