Distributed Wireless Coexistence, Middleware Solutions and Immunity Hardening

Distributed wireless base stations are becoming more prevalent as their physical size shrinks and their computing and control functions increase substantially. Distributed wireless base stations operating at the same or different bands will be installed in close proximity. These devices must have the ability to function as intended in the presence of radio noise that is intentionally and unintentionally radiated from adjacently installed devices. The small in-band electrical noise levels could be a source of interference, and any large signal could completely disrupt their functions. Problems due to coexistence, co-channel interference, and beam forming in a distributed system are emerging research challenges. The implementation of service oriented application (apps) based middleware solutions could help reduce computing and control electronics in these devices, improve the energy efficiency and minimize functional disruptions. The manufacturers, service providers, and regulators have an important role in resolving these radio interference issues. This paper focuses on the required design techniques for distributed wireless base station immunity hardening and in-band interference controls.