Wireless Networking




This is how it all started…wired broadband created the Cloud and wireless broadband begat the smart phone.

The dominant disruptor in broadband wireless in the last twenty years was, without a doubt, the near universal adoption of Orthogonal Frequency Division Multiplexing (OFDM) modulation. Today OFDM is predominantly used in almost every wired and wireless communications. The fundamental advantages that OFDM brings are spectral efficiency and computational efficiency. Because the core of the OFDM algorithm is a Fast Fourier Transform (FFT) it is naturally a highly efficient technique to reduce arithmetic computation. The benefit of less computation is less power, less complexity, and far less cost per bit.

The systems that use OFDM serve the most people. Wifi 802.11n/ac and LTE 3GPP serve billions of users downloading data and streaming video on their smart phones and computers every day. And with IoT on the horizon these numbers will explode. Companies such as Qualcomm, Mediatek, Samsung and Intel stand to profit greatly through applying OFDM to the emerging IoT market. Newer technologies such as MIMO and MU-MIMO have linearly and then geometrically increased the capacity of OFDM networks.

Although OFDM dominates broadband, power-limited systems such as millimeter wave satellite communications systems and very bandwidth-limited devices like Bluetooth still use older-style single-carrier per-channel (SCPC) waveforms in order to maximize the efficiency of their RF power amplifiers.

Global satellites networks, once the jewel of the space age in the 1960’s, faded from glory after the major optical fiber rollouts and now serve primarily as overlay and video point-to-multipoint distribution networks.

But something new came on the horizon…Two relatively recent entrants to global telecom, Google and Facebook, have catalyzed a resurgence in areas that were once the province of the satellite designer. Google, with its balloon-based Project Loon, and Facebook, with its drone-based Aquilla program, are both actively competing with each other to loft broadband transponders to deliver broadband wireless quickly and economically into emerging markets.

Going back to our foundation, Esencia’s first product was a hyper-efficient FFTblock followed by other communication building blocks of OFMD systems and security IPs like AES. Esencia has very deep and extremely capable systems, software, and especially, hardware and IC design teams who are expert at building wireless chips and systems. Our team has built dozens of ICs and enabled millions of wireless devices. We understand this technology.