picoChip accelerates WiMAX effort.picoChip recently announced it is developing a WiMAX PHY library, to run on its picoArray processor. The company already has a number of OFDM (Orthogonal Frequency Division Multiplexing) A digital transmission technique that uses a large number of carriers spaced apart at slightly different frequencies. building blocks, and this development integrates them to deliver an end-to-end solution, enabling OEMs to accelerate their development of cost-effective WiMAX-certified systems. This complements the company's successful reference designs for WCDMA (Wideband CDMA) A 3G high-speed digital data service provided by cellular carriers that use the TDMA or GSM technology worldwide, including AT&T (formerly Cingular) and T-Mobile in the U.S. and HSDPA (High Speed Downlink Packet Access) See HSPA. . The standards agility of the picoArray architecture "future-proofs" today's designs, even as the IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. 802.16 standard evolves to the more complex 'd' and 'e' revisions.
Doug Pulley, co-founder and CTO of picoChip said; "Key manufacturers are already using picoArrays in both 3G and WiMAX basestations, but the availability of this library will accelerate the development and deployment of WiMAX compliant systems. What is more, we can deliver upgradeable WiMAX with dramatically better price-performance than traditional architectures, and thus completely replacing DSP and FPGAs."
Andy Fuertes, Senior Analyst with Visant Strategies and author of the recently published study, "802.16/WiMAX Technologies: World Market Forecasts 2003-2008", commented: "The 802.16 market could emulate 802.11's rise as it hits price and performance targets, creating major opportunities for companies. However, it is a complex standard, with three different physical layers, a host of possible configurations (for example, TDD/FDD, channel bandwidth) and a number of optional features. The flexibility in the standard, limited availability of CPE (Customer Premises Equipment) Communications equipment that resides on the customer's premises.
CPE - Customer Premises Equipment equipment and time-to-market pressure make a software solution highly desirable, especially for the base station."
Andy Fuertes concludes: "The picoChip solution will accelerate market acceptance of 802.16 by enabling carriers to deploy early while retaining the ability to upgrade to mobility (802.16e) and full WiMAX compliance later. The solution is effectively an insurance policy against obsolescence and the risks of a rapidly evolving standard and segment."
The picoArray provides unprecedented flexibility to address evolving standards or the introduction of new features, and it is straightforward to implement IEEE 802.16d (next generation fixed), 802.16e (mobility) or HPI HPI
history of present illness , the Korean broadband wireless standard. This includes trouble-free support for TDD or FDD, increased channel bandwidths, larger FFT sizes, sub-channelisation or new FEC-modes (convolutional turbo-code). It also enables efficient use of multiple antennas at high sample rates, critically important for advanced algorithms such as adaptive antennas, space-time-coding (STC) and MIMO (Multiple Input/Multiple Output) Pronounced "my-mo," it is the use of multiple transmitters and receivers (multiple antennas) on wireless devices for improved performance. . The system is suited to both basestations and high-end subscriber stations.
The picoArray delivers radical improvements in price / performance and development time. It combines the price and programmability of a traditional DSP with the performance of a FPGA (Field Programmable Gate Array) A type of gate array that is programmed in the field rather than in a semiconductor fab. Containing up to hundreds of thousands of gates, there are a variety of FPGA architectures on the market. / ASIC. The picoChip PC102 at 160Mhz and 4W delivers performance of 200GIPS GIPS - /gips/ or /jips/ [Analogy with MIPS] Giga-Instructions per Second (or possibly "Gillions of Instructions per Second"; see gillion).
In 1991, this was used of only a handful of highly parallel machines and one sequential processor built with Josephson devices. , which can include sustained 40 GMACs (Giga multiply accumulates per second, the standard benchmark of DSP performance)--approximately ten times more than a top-of-the-line DSP. For example, an Analog Devices TigerSHARC TS201 @ 600MHz is 4.8GMACs or Texas Instruments' TMS320C6416 delivers 4.0GMACs at 1GHz. A realistic 20MSPS 256point complex FFT would take less than 5% of the PC102's capability; while a 2048point transform for OFDMA OFDMA Orthogonal Frequency-Division Multiple Access
OFDMA Ofdm Access mode would require just 8%. Similarly, a 100-tap FIR digital filter (say, a 10MHz channel with over sampling) might completely fill a normal DSP or require an FPGA, but uses less than 5% of one picoArray. For error correction (Reed-Solomon+Viterbi) a single PC102 device can very easily decode sustained data rates of greater than 100Mbps, e.g. for multi-carrier basestations, with ample extra capability.
The picoChip WiMAX library compliments the company's existing reference designs for WCDMA and HSDPA.