Designing MlMO systems for reliable coverage in non-LOS wireless links

摘要

Understanding the issues of wireline availability and reliability in non-line-of-sight wireless environments Providing wireline availability and reliability in non-line-of-sight (non-LOS) wireless environments presents a particular set of challenges. Difficulties lie in the fact that the received signal power at a location in space is not constant, but is instead random in nature. The depth of the fades is a function of how non-LOS the wireless link actually is. This truism of wireless communications underscores one of the wireless industry's greatest challenges in enabling both fixed and mobile broadband wireless connectivity. Recently commercially developed multiple antenna technologies are demonstrating notable success in defeating early systems' LOS limitations. The advantages of multiple antenna technology are best understood in terms of the obstacles they address.