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whitepaper Today's marketplace faces unprecedented diversity, fragmentation of consumer values, and information transparency. These circumstances make it harder than ever to achieve brand loyalty. This white paper focuses on incorporating customer input into...
[11 Apr 2008]
News Monica Basso, research VP at Gartner, said in a statement: "Mobile products will have to address gender diversity and demographics, evolving and differentiating into a range of consumer products. Mobile phones are designed by men for men, with...
[10 Apr 2008]
whitepaper The system uses differential binary phase shift keying (DBPSK) modulation and post detection diversity combining, considering slowly Rician fading and frequency selective channel in the indoor environment.
[10 Apr 2008]
whitepaper This paper proposes a new diversity technique for broadband wireless access systems that uses orthogonal frequency division multiplexing (OFDM) and describes its performance. This technique consists of two components.
[10 Apr 2008]
whitepaper This paper investigates trade offs between different techniques in broadband OFDM-based MIMO systems for achieving full diversity or maximum spatial multiplexing gain. The basic model of OFDM-based spatial multiplexer is very suitable for high data...
[10 Apr 2008]
whitepaper However, OFDM's performance suffers from the loss of multipath diversity, and the inability to guarantee symbol detectability when channel nulls occur. Orthogonal frequency-division multiplexing (OFDM) converts a frequency-selective fading channel...
[10 Apr 2008]
whitepaper Much of the performance analysis on multiuser receivers for direct-sequence code division multiple-access (CDMA) systems is focused on worst case near-far scenarios. The user capacity of power-controlled networks with multiuser receivers are less...
[10 Apr 2008]
whitepaper This paper identifies the maximum achievable diversity order for i.i.d.or correlated Rayleigh fading channels and also provide design rules for achieving maximum diversity gains with LP-OFDM. Orthogonal Frequency Division Multiplexing (OFDM...
[10 Apr 2008]
whitepaper Performance analyses based on both pairwise error probability (PEP) and error bounds are conducted over a more general block fading channel that possesses both frequency and time diversity, and of which the fast and quasi-static fading channels...
[10 Apr 2008]
whitepaper When the Alamouti code is applied (as a space-time block code) to an OFDM system with transmit diversity, the simple Alamouti decoding requires that each subchannel is flat-fading and constant over two symbol periods (Alamouti codeword period).
[10 Apr 2008]
whitepaper The code-division multiplexing (CDM) component within an orthogonal frequency-division multiplexing (OFDM) system enables additional diversity in frequency- and time-selective mobile radio channels. In this paper, the potential of orthogonal...
[10 Apr 2008]
whitepaper Furthermore, since spatial diversity is the ultimate way to increase system capacity in bandwidth-cautious wireless applications, the SVD antenna-array processing algorithm is also implemented and will be integrated with the OFDM receiver.
[10 Apr 2008]
whitepaper Traditionally, the most popular technique to combat fading has been the exploitation of diversity. The major driver for broadband wireless communications has been reliable high-data-rate services (e.g.real-time multimedia services).
[10 Apr 2008]
whitepaper While the ISI caused by delay spread is an annoyance factor, it also provides path diversity advantage if the path gains fade independently. This paper proposes a novel technique to exploit this multipath induced diversity in OFDM systems.
[03 Apr 2008]
whitepaper This paper proposes the cooperative resource allocation over multiuser OFDM networks, by exploring the broadcast nature of the wireless channel and the consequently possible cooperation among users to improve the system performance.
[02 Apr 2008]
whitepaper Over the last number of years, the growth rate of storage resources has been extraordinary, driven by applications that have a greater thirst for more and larger files and a diversity of performance requirements.
[28 Mar 2008]
whitepaper Because the end-uses for XML-enabled content are diverse, there is a diversity of solutions, including word processor plug-ins, legacy format conversion, custom forms, and XML content solutions platforms designed specifically for XML.
[27 Mar 2008]
whitepaper Cyclic Delay Diversity (CDD) is a simple approach to introduce spatial diversity to an Orthogonal Frequency Division Multiplexing (OFDM) based transmission scheme that itself has no built-in diversity.
[24 Mar 2008]
whitepaper Cisco has developed a service optimized IP NGN architecture, for service providers that, together with the Cisco CRS-1: Delivers emerging large-scale IP broadcast video services with the availability and reliability that ensures an entertainment...
[24 Mar 2008]
News I believe in unified presentation and let diversity reign. The world's biggest mobile phone trade show - Mobile World Congress 2008 - took place earlier this month in Barcelona. Here's a flavour of the topics on the minds of some of the industry's...
[22 Feb 2008]
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