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TWC
2008
13 years 9 months ago
2008
Abstract--Push-to-talk over Cellular (PoC) is a "walkietalkie"-like service designed for mobile networks. In this service, the speak permission is arbitrated through the ...
TWC
2008
13 years 9 months ago
2008
We develop a reduced-complexity hybrid frequency/time-domain orthogonal frequency division multiplexing (OFDM) channel estimation algorithm for high-mobility scenarios where the ch...
TWC
2008
13 years 9 months ago
2008
In this paper, it is shown that it is challenging to evaluate service fairness in multi-hop wireless networks due to intra-flow contention and unequal channel capacity. The convent...
TWC
2008
13 years 9 months ago
2008
A method was proposed in this journal (vol. 6, no. 1, pp. 192-201, 2007), which tackles a power allocation problem for interleave-division multiple-access (IDMA) systems over fadin...
TWC
2008
13 years 9 months ago
2008
Differential, transmitted reference (TR) and energy detection (ED) based ultra-wideband impulse radios (UWBIR) can collect the rich multipath energy offered by UWB channels with a ...